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stringlengths 21
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|---|---|---|---|
mnlp_stem_mcqa_eval_300
|
Let (Z_{10} , +, x) be the ring of integers modulo 10, and let S be the subset of Z_{10} represented by {0, 2, 4, 6, 8}. Which of the following statements is FALSE?
|
[
"(S, +, x) is closed under addition modulo 10.",
"(S, +, x) is closed under multiplication modulo 10.",
"(S, +, x) has an identity under addition modulo 10.",
"(S, +, x) has no identity under multiplication modulo 10."
] |
D
|
mnlp_stem_mcqa_eval_301
|
The 99Ru chemical shift of [Ru(H2O)6]2+ is 16,050 ppm relative to [Ru(CN)6]2- at 0 ppm. The electronic excitation energies of [Ru(H2O)6]2+, [Ru(CN)6]2- and [Ru(NH3)6]2+ are 18,900, 40,000 and 25,600 cm-1 respectively. Assuming that the chemical shift differences are dominated by paramagnetic currents, determine the chemical shift of [Ru(NH3)6]2+.
|
[
"7,530 ppm",
"8,090 ppm",
"11,070 ppm",
"14,840 ppm"
] |
B
|
mnlp_stem_mcqa_eval_302
|
X-chromosome inactivation
|
[
"results in genetically turning off one of the two X chromosomes in female mammals",
"takes place in humans so that the same X chromosome is inactive in all of the cells of a female",
"is the cause of the Y chromosome being genetically inactive",
"occurs in fruit flies but not in mammals"
] |
A
|
mnlp_stem_mcqa_eval_303
|
The most widespread and important retrovirus is HIV-1; which of the following is true?
|
[
"Infecting only gay people",
"Infecting only males",
"Infecting every country in the world",
"Infecting only females"
] |
A
|
mnlp_stem_mcqa_eval_304
|
The following are the necessary requirements of an oscillator
|
[
"Amplitude stability",
"Frequency stability",
"Power stability",
"Both A and B"
] |
D
|
mnlp_stem_mcqa_eval_305
|
The world's population has grown at an average rate of 1.9 percent per year since 1945. There were approximately 4 billion people in the world in 1975. Which of the following functions represents the world's population $P$, in billions of people, $t$ years since $1975 ?(1$ billion $=1,000,000,000)$
|
[
"$P(t)=4(1.019)^{t}$",
"$P(t)=4(1.9)^{t}$",
"$P(t)=1.19 t+4$",
"$P(t)=1.019 t+4$"
] |
A
|
mnlp_stem_mcqa_eval_306
|
Biologists found a new species of pale shrimp at the world's deepest undersea vent, the Beebe Vent Field. The vent is 3.1 miles below the sea's surface.Approximately how many kilometers below the sea's surface is the vent? ( 1 kilometer $\approx 0.6214$ miles)
|
[
"2",
"3",
"4",
"5"
] |
D
|
mnlp_stem_mcqa_eval_307
|
\begin{center}\begin{tabular}{|l|c|c|}\cline { 2 - 3 }\multicolumn{1}{c|}{} & \multicolumn{2}{c|}{Handedness} \\\hlineGender & Left & Right \\\hline\hlineFemale & & \\\hlineMale & & \\\hline\hlineTotal & 18 & 122 \\\hline\end{tabular}\end{center}The incomplete table above summarizes the number of left-handed students and right-handed students by gender for the eighth-grade students atKeisel Middle School. There are 5 times as many right-handed female students as there are left-handed female students, and there are 9 times as many right-handed male students as there are left-handed male students. If there is a total of 18 left-handed students and 122 right-handed students in the school, which of the following is closest to the probability that a right-handed student selected at random is female? (Note: Assume that none of the eighth-grade students are both right-handed and left-handed.)
|
[
"0.410",
"0.357",
"0.333",
"0.250"
] |
A
|
mnlp_stem_mcqa_eval_308
|
Find the number of elements in the indicated cyclic group: The cyclic subgroup of Z_30 generated by 25.
|
[
"25",
"5",
"6",
"30"
] |
C
|
mnlp_stem_mcqa_eval_309
|
Determinants of acquiring an HIV infection from an infected person per sexual act include:
|
[
"Viral RNA level",
"Presence of other infections",
"Condom use",
"All of the above"
] |
D
|
mnlp_stem_mcqa_eval_310
|
Which of the following is an equivalent form of $(1.5 x-2.4)^{2}-\left(5.2 x^{2}-6.4\right) ?$
|
[
"$-2.2 x^{2}+1.6$",
"$-2.2 x^{2}+11.2$",
"$-2.95 x^{2}-7.2 x+12.16$",
"$-2.95 x^{2}-7.2 x+0.64$"
] |
C
|
mnlp_stem_mcqa_eval_311
|
Male breast cancer is associated with mutations in ___.
|
[
"BRCA1",
"BRCA2",
"NF1",
"RET"
] |
B
|
mnlp_stem_mcqa_eval_312
|
Oil and gas production in a certain area dropped from 4 million barrels in 2000 to 1.9 million barrels in 2013. Assuming that the oil and gas production decreased at a constant rate, which of the following linear functions $f$ best models the production, in millions of barrels, $t$ years after the year 2000 ?
|
[
"$f(t)=\\frac{21}{130} t+4$",
"$f(t)=\\frac{19}{130} t+4$",
"$f(t)=-\\frac{21}{130} t+4$",
"$f(t)=-\\frac{19}{130} t+4$"
] |
C
|
mnlp_stem_mcqa_eval_313
|
Which of the following karyotypes is diagnostic of Down syndrome
|
[
"46,XX,der(14;21)(q10;q10)pat+21",
"47,XY,+13",
"45,XX,rob,(14;21)(q10;q10)",
"46,XY,t(2;3)(q21;q12)"
] |
A
|
mnlp_stem_mcqa_eval_314
|
Which of the following is equivalent to the sum of the expressions $a^{2}-1$ and $a+1$ ?
|
[
"$a^{2}+a$",
"$a^{3}-1$",
"$2 a^{2}$",
"$a^{3}$"
] |
A
|
mnlp_stem_mcqa_eval_315
|
The weight of an object on Venus is approximately $\frac{9}{10}$ of its weight on Earth. The weight of an object on Jupiter is approximately $\frac{23}{10}$ of its weight on Earth. If an object weighs 100 pounds on Earth, approximately how many more pounds does it weigh on Jupiter than it weighs on Venus?
|
[
"90",
"111",
"140",
"230"
] |
C
|
mnlp_stem_mcqa_eval_316
|
Let M be a single-tape, deterministic Turing machine with tape alphabet {blank,0,1}, and let C denote the (possibly infinite) computation of M starting with a blank tape. The input to each problem below is M, together with a positive integer n. Which of the following problems is (are) decidable?
I. The computation C lasts for at least n steps.
II. The computation C lasts for at least n steps, and M prints a 1 at some point after the nth step.
III. M scans at least n distinct tape squares during the computation C.
|
[
"None",
"III only",
"I and II only",
"I and III only"
] |
D
|
mnlp_stem_mcqa_eval_317
|
Papilloma viruses are characterised by what genetic feature?
|
[
"A genome of ds circular DNA encoding around 8 ORF",
"A virus with RT able to integrate and cause cancer",
"A variable ds RNA virus",
"A large DNA containing virus"
] |
A
|
mnlp_stem_mcqa_eval_318
|
$$(a x+3)\left(5 x^{2}-b x+4\right)=20 x^{3}-9 x^{2}-2 x+12$$The equation above is true for all $x$, where $a$ and $b$ are constants. What is the value of $a b$ ?
|
[
"18",
"20",
"24",
"40"
] |
C
|
mnlp_stem_mcqa_eval_319
|
Statement 1| Maximizing the likelihood of logistic regression model yields multiple local optimums. Statement 2| No classifier can do better than a naive Bayes classifier if the distribution of the data is known.
|
[
"True, True",
"False, False",
"True, False",
"False, True"
] |
B
|
mnlp_stem_mcqa_eval_320
|
Statement 1 | For n > 1, the set {1,2, ..., n-1} is a group under multiplication modulo n. Statement 2 | There is an integer x such that 63x mod 100 = 1.
|
[
"True, True",
"False, False",
"True, False",
"False, True"
] |
D
|
mnlp_stem_mcqa_eval_321
|
$$\begin{aligned}& x=y-3 \\& \frac{x}{2}+2 y=6\end{aligned}$$Which ordered pair $(x, y)$ satisfies the system of equations shown above?
|
[
"$(-3,0)$",
"$(0,3)$",
"$(6,-3)$",
"$(36,-6)$"
] |
B
|
mnlp_stem_mcqa_eval_322
|
A single-electron atom has the electron in the l = 2 state. The number of allowed values of the quantum number m_l is
|
[
"1",
"2",
"3",
"5"
] |
D
|
mnlp_stem_mcqa_eval_323
|
If $p$ percent of an adult's daily allowance of potassium is provided by $x$ servings of Crunchy Grain cereal per day, which of the following expresses $p$ in terms of $x$ ?
|
[
"$p=0.5 x$",
"$p=5 x$",
"$p=(0.05)^{x}$",
"$p=(1.05)^{x}$"
] |
B
|
mnlp_stem_mcqa_eval_324
|
At the present time, the temperature of the universe (i.e., the microwave radiation background) is about 3 K. When the temperature was 12 K, typical objects in the universe, such as galaxies, were
|
[
"one-quarter as distant as they are today",
"one-half as distant as they are today",
"separated by about the same distances as they are today",
"two times as distant as they are today"
] |
A
|
mnlp_stem_mcqa_eval_325
|
Graphene, which is used in the manufacture of integrated circuits, is so thin that a sheet weighing one ounce can cover up to 7 football fields. If a football field has an area of approximately $1 \frac{1}{3}$ acres, about how many acres could 48 ounces of graphene cover?
|
[
"250",
"350",
"450",
"1,350"
] |
C
|
mnlp_stem_mcqa_eval_326
|
If $x>3$, which of the following is equivalent to $\frac{1}{\frac{1}{x+2}+\frac{1}{x+3}}$ ?
|
[
"$\\frac{2 x+5}{x^{2}+5 x+6}$",
"$\\frac{x^{2}+5 x+6}{2 x+5}$",
"$2 x+5$",
"$x^{2}+5 x+6$"
] |
B
|
mnlp_stem_mcqa_eval_327
|
On Tuesday, Jennifer will mix Crunchy Grain cereal with Super Grain cereal for her breakfast. Super Grain cereal provides 240 calories per cup. If the total number of calories in one cup of Jennifer's mixture is 270, how much Super Grain cereal is in one cup of the mixture?
|
[
"$\\frac{1}{8} \\operatorname{cup}$",
"$\\frac{1}{4} \\operatorname{cup}$",
"$\\frac{1}{3} \\operatorname{cup}$",
"$\\frac{1}{2} \\operatorname{cup}$"
] |
B
|
mnlp_stem_mcqa_eval_328
|
At what price will the quantity of the product supplied to the market equal the quantity of the product demanded by the market?
|
[
"$\\$ 90$",
"$\\$ 120$",
"$\\$ 133$",
"$\\$ 155$"
] |
B
|
mnlp_stem_mcqa_eval_329
|
The average number of students per classroom at Central High School from 2000 to 2010 can be modeled by the equation $y=0.56 x+27.2$, where $x$ represents the number of years since 2000 , and $y$ represents the average number of students per classroom. Which of the following best describes the meaning of the number 0.56 in the equation?
|
[
"The total number of students at the school in 2000",
"The average number of students per classroom in 2000",
"The estimated increase in the average number of students per classroom each year",
"The estimated difference between the average number of students per classroom in 2010 and in 2000"
] |
C
|
mnlp_stem_mcqa_eval_330
|
\begin{center}\begin{tabular}{|l|c|c|c|}\hline\multirow{2}{*}{$\begin{array}{c}\text { Type of } \\\text { surgeon }\end{array}$} & \multicolumn{2}{|c|}{$\begin{array}{c}\text { Major professional } \\\text { activity }\end{array}$} & \multirow{2}{*}{Total} \\\cline { 2 - 3 }& Teaching & Research \\\hlineGeneral & 258 & 156 & 414 \\\hlineOrthopedic & 119 & 74 & 193 \\\hlineTotal & 377 & 230 & 607 \\\hline\end{tabular}\end{center}In a survey, 607 general surgeons and orthopedic surgeons indicated their major professional activity. The results are summarized in the table above. If one of the surgeons is selected at random, which of the following is closest to the probability that the selected surgeon is an orthopedic surgeon whose indicated professional activity is research?
|
[
"0.122",
"0.196",
"0.318",
"0.379"
] |
A
|
mnlp_stem_mcqa_eval_331
|
Both C4 and CAM plants employ physiological and biochemical strategies to reduce photorespiration. Which of the following is an accurate comparison of the two strategies?
|
[
"C4 plants fix CO2 as the 4-carbon acid oxaloacetate, while CAM plants fix CO2 as the 5-carbon acid ribulose 1, 5-bisphosphate.",
"C4 plants fix CO2 in the mesophyll but carry out the Calvin cycle in the bundle sheath, while CAM plants fix CO2 and carry out the Calvin cycle in the mesophyll.",
"C4 plants fix CO2 in the bundle sheath but carry out the Calvin cycle in the mesophyll, while CAM plants fix CO2 and carry out the Calvin cycle in the bundle sheath.",
"C4 plants store CO2 as phosphoglycolate, while CAM plants store CO2 as oxaloacetate."
] |
B
|
mnlp_stem_mcqa_eval_332
|
Statement 1 | If A is connected, the closure of A must be connected. Statement 2 | Every continuous function f : (0, 1) → (0, 1) has a fixed point.
|
[
"True, True",
"True, False",
"False, True",
"False, False"
] |
B
|
mnlp_stem_mcqa_eval_333
|
The energy for all forms of muscle contraction is provided by:
|
[
"ATP.",
"ADP.",
"phosphocreatine.",
"oxidative phosphorylation."
] |
A
|
mnlp_stem_mcqa_eval_334
|
Considering 0.1 M aqueous solutions of each of the following, which solution has the lowest pH?
|
[
"Na2CO3",
"Na3PO4",
"Na2S",
"NaCl"
] |
D
|
mnlp_stem_mcqa_eval_335
|
$$\begin{aligned}& g(x)=2 x-1 \\& h(x)=1-g(x)\end{aligned}$$The functions $g$ and $h$ are defined above. What is the value of $h(0)$ ?
|
[
"-2",
"0",
"1",
"2"
] |
D
|
mnlp_stem_mcqa_eval_336
|
In 2015 the populations of City $\mathrm{X}$ and City $\mathrm{Y}$ were equal. From 2010 to 2015, the population of City X increased by $20 \%$ and the population of City $\mathrm{Y}$ decreased by $10 \%$. If the population of City $\mathrm{X}$ was 120,000 in 2010, what was the population of City Y in 2010 ?
|
[
"60,000",
"90,000",
"160,000",
"240,000"
] |
C
|
mnlp_stem_mcqa_eval_337
|
A box which tells the effect of inputs on control sub system is known as
|
[
"Data Box.",
"Logical box.",
"Decision box.",
"State box."
] |
C
|
mnlp_stem_mcqa_eval_338
|
In the group G = {2, 4, 6, 8) under multiplication modulo 10, the identity element is
|
[
"6",
"8",
"4",
"2"
] |
A
|
mnlp_stem_mcqa_eval_339
|
In a random sample of 200 cars of a particular model, 3 have a manufacturing defect. At this rate, how many of 10,000 cars of the same model will have a manufacturing defect?
|
[
"150",
"200",
"250",
"300"
] |
A
|
mnlp_stem_mcqa_eval_340
|
It takes Kate k days to write a GRE math practice test. It takes John j days to write a GRE math practice test. If Kate and John work on a practice test in alternating 2-day shifts, it takes them 10 days when Kate starts and 10.5 days when John starts. How long would it take the two to complete a practice test if Kate and John worked simultaneously?
|
[
"9/2 days",
"5 days",
"41/8 days",
"36/7 days"
] |
D
|
mnlp_stem_mcqa_eval_341
|
$$x+1=\frac{2}{x+1}$$In the equation above, which of the following is a possible value of $x+1$ ?
|
[
"$1-\\sqrt{2}$",
"$\\sqrt{2}$",
"2",
"4"
] |
B
|
mnlp_stem_mcqa_eval_342
|
A customer paid $\$ 53.00$ for a jacket after a 6 percent sales tax was added. What was the price of the jacket before the sales tax was added?
|
[
"$\\$ 47.60$",
"$\\$ 50.00$",
"$\\$ 52.60$",
"$\\$ 52.84$"
] |
B
|
mnlp_stem_mcqa_eval_343
|
Statement 1| ImageNet has images of various resolutions. Statement 2| Caltech-101 has more images than ImageNet.
|
[
"True, True",
"False, False",
"True, False",
"False, True"
] |
C
|
mnlp_stem_mcqa_eval_344
|
The set of integers Z with the binary operation "*" defined as a*b =a +b+ 1 for a, b in Z, is a group. The identity element of this group is
|
[
"0",
"1",
"-1",
"12"
] |
C
|
mnlp_stem_mcqa_eval_345
|
Five capacitors each of 5 µF are connected in series, the equivalent capacitance of the system will be
|
[
"5 µF",
"25 µF",
"10 µF",
"1 µF"
] |
D
|
mnlp_stem_mcqa_eval_346
|
The equation $\frac{24 x^{2}+25 x-47}{a x-2}=-8 x-3-\frac{53}{a x-2}$ is true for all values of $x \neq \frac{2}{a}$, where $a$ is a constant.What is the value of $a$ ?
|
[
"-16",
"-3",
"3",
"16"
] |
B
|
mnlp_stem_mcqa_eval_347
|
The energy from electromagnetic waves in equilibrium in a cavity is used to melt ice. If the Kelvin temperature of the cavity is increased by a factor of two, the mass of ice that can be melted in a fixed amount of time is increased by a factor of
|
[
"2",
"4",
"8",
"16"
] |
D
|
mnlp_stem_mcqa_eval_348
|
A psychologist conducts an experiment in which subjects are asked to learn a series of “facts” which are actually statements that have been fabricated by the research team. The subjects consist of undergraduate students at the university where the experiment is being conducted. The subjects are randomly assigned to groups that are compensated either $10 or $20 for their participation, are given either 15 minutes or 30 minutes to learn the facts, and are asked to recall the facts either in the same room in which they learned the facts or in a very different, unfamiliar setting. Which of the following are dependent variables in this experiment?
I. The amount the subjects were compensated.
II. The room in which the subjects were asked to recall facts.
III. The number of facts the subjects can recall.
IV. The time the subjects were given to learn the facts.
|
[
"II only",
"III only",
"I and IV only",
"I and III and IV only"
] |
B
|
mnlp_stem_mcqa_eval_349
|
With which of the following relatives is an individual most likely to share a common HLA haplotype?
|
[
"Father",
"Mother",
"Sister",
"Son"
] |
C
|
mnlp_stem_mcqa_eval_350
|
For what value of $n$ is $|n-1|+1$ equal to 0 ?
|
[
"0",
"1",
"2",
"There is no such value of $n$."
] |
D
|
mnlp_stem_mcqa_eval_351
|
The fact that the infrared absorption frequency of deuterium chloride (DCl) is shifted from that of hydrogen chloride (HCl) is due to the differences in their
|
[
"electron distribution",
"dipole moment",
"force constant",
"reduced mass"
] |
D
|
mnlp_stem_mcqa_eval_352
|
What are the solutions to $3 x^{2}+12 x+6=0 ?$
|
[
"$x=-2 \\pm \\sqrt{2}$",
"$x=-2 \\pm \\frac{\\sqrt{30}}{3}$",
"$x=-6 \\pm \\sqrt{2}$",
"$x=-6 \\pm 6 \\sqrt{2}$"
] |
A
|
mnlp_stem_mcqa_eval_353
|
A 10 kg box slides horizontally without friction at a speed of 1 m/s. At one point, a constant force is applied to the box in the direction of its motion. The box travels 5 m with the constant force applied. The force is then removed, leaving the box with a speed of 2 m/s. Which of the following gives the magnitude of the applied force?
|
[
"1 N",
"2 N",
"3 N",
"4 N"
] |
C
|
mnlp_stem_mcqa_eval_354
|
A circle in the $x y$-plane has center $(5,7)$ and radius 2. Which of the following is an equation of the circle?
|
[
"$(x-5)^{2}+(y-7)^{2}=4$",
"$(x+5)^{2}+(y+7)^{2}=4$",
"$(x-5)^{2}+(y-7)^{2}=2$",
"$(x+5)^{2}+(y+7)^{2}=2$"
] |
A
|
mnlp_stem_mcqa_eval_355
|
Statement 1 | If H and K are subgroups of G and one of H or K is normal subgroup of G, then HK is a subgroup of G. Statement 2 | All groups of order p^2 where p is prime are Abelian.
|
[
"True, True",
"False, False",
"True, False",
"False, True"
] |
A
|
mnlp_stem_mcqa_eval_356
|
Hybrids between some related species of plants are sterile because the parent plants had different chromosome numbers. Occasionally the chromosome number of such a hybrid plant doubles spontaneously. Which of the following best describes the descendants of those plants with the double chromosome number?
|
[
"The plant with the double chromosome number would be genetically defective and have no descendants.",
"The descendants would be at a selective advantage because of the increased ability to introgress.",
"The descendants would be reproductively successful because they could backcross with the parental species.",
"The descendants would regain the ability to reproduce sexually because chromosomes could pair normally."
] |
D
|
mnlp_stem_mcqa_eval_357
|
Calculate the equilibrium polarization of 13C nuclei in a 20.0 T magnetic field at 300 K.
|
[
"10.8 x 10^-5",
"4.11 x 10^-5",
"3.43 x 10^-5",
"1.71 x 10^-5"
] |
D
|
mnlp_stem_mcqa_eval_358
|
In the $x y$-plane, the graph of the polynomial function $f$ crosses the $x$-axis at exactly two points, $(a, 0)$ and $(b, 0)$, where $a$ and $b$ are both positive. Which of the following could define $f$ ?
|
[
"$f(x)=(x-a)(x-b)$",
"$f(x)=(x+a)(x+b)$",
"$f(x)=(x-a)(x+b)$",
"$f(x)=x(x-a)(x-b)$"
] |
A
|
mnlp_stem_mcqa_eval_359
|
Which of the following is the most common naturally-occurring form in which silicon is found?
|
[
"Metallic element",
"Sulfide",
"Fluoride",
"Oxide"
] |
D
|
mnlp_stem_mcqa_eval_360
|
If a malicious process is granted temporary administrator-level access to a system
|
[
"the threat is over as soon as the process is killed",
"the threat is over after the operating system is rebooted",
"the thread is over after rebooting the machine and replacing files that show a virus infection",
"the threat is often permanent until the entire disk is wiped clean"
] |
D
|
mnlp_stem_mcqa_eval_361
|
If $\frac{3}{5} w=\frac{4}{3}$, what is the value of $w ?$
|
[
"$\\frac{9}{20}$",
"$\\frac{4}{5}$",
"$\\frac{5}{4}$",
"$\\frac{20}{9}$"
] |
D
|
mnlp_stem_mcqa_eval_362
|
$$x+y=75$$The equation above relates the number of minutes, $x$, Maria spends running each day and the number of minutes, $y$, she spends biking each day. In the equation, what does the number 75 represent?
|
[
"The number of minutes spent running each day",
"The number of minutes spent biking each day",
"The total number of minutes spent running and biking each day",
"The number of minutes spent biking for each minute spent running"
] |
C
|
mnlp_stem_mcqa_eval_363
|
The best type of laser with which to do spectroscopy over a range of visible wavelengths is
|
[
"a dye laser",
"a helium-neon laser",
"an excimer laser",
"a ruby laser"
] |
A
|
mnlp_stem_mcqa_eval_364
|
Which of the following is equal to $a^{\frac{2}{3}}$, for all values of $a$ ?
|
[
"$\\sqrt{a^{\\frac{1}{3}}}$",
"$\\sqrt{a^{3}}$",
"$\\sqrt[3]{a^{\\frac{1}{2}}}$",
"$\\sqrt[3]{a^{2}}$"
] |
D
|
mnlp_stem_mcqa_eval_365
|
Newborn infants in countries with limited access to safe water and low levels of education should be:
|
[
"Exclusively formula fed for six months",
"Exclusively breast fed for six months",
"Should receive both breast milk and other foods as tolerated in the first 6",
"months"
] |
B
|
mnlp_stem_mcqa_eval_366
|
Which component of transcribed RNA in eukaryotes is present in the initial transcript but is removed before translation occurs?
|
[
"Intron",
"3’ Poly A tail",
"Ribosome binding site",
"5’ cap"
] |
A
|
mnlp_stem_mcqa_eval_367
|
\begin{center}\begin{tabular}{|c|c|c|c|c|c|}\cline { 3 - 5 }\multicolumn{2}{c|}{} & \multicolumn{3}{c|}{Course} & \multicolumn{1}{c|}{} \\\cline { 2 - 5 }\multicolumn{2}{c|}{} & Algebra I & Geometry & $\begin{array}{c}\text { Algebra } \\ \text { II }\end{array}$ & \multirow{2}{*}{Total} \\\hline\multirow{2}{*}{Gender} & Female & 35 & 53 & 62 & \\\cline { 2 - 5 }& Male & 44 & 59 & 57 & 160 \\\hline& Total & 79 & 112 & 119 & 310 \\\hline\end{tabular}\end{center}A group of tenth-grade students responded to a survey that asked which math course they were currently enrolled in. The survey data were broken down as shown in the table above. Which of the following categories accounts for approximately 19 percent of all the survey respondents?
|
[
"Females taking Geometry",
"Females taking Algebra II",
"Males taking Geometry",
"Males taking Algebra I"
] |
C
|
mnlp_stem_mcqa_eval_368
|
Statement 1 | Every permutation is a cycle. Statement 2 | Every cycle is a permutation.
|
[
"True, True",
"False, False",
"True, False",
"False, True"
] |
D
|
mnlp_stem_mcqa_eval_369
|
What type of covalent bonds link the amino acids in a protein?
|
[
"Peptide bonds",
"Hydrogen bonds",
"Ionic bonds",
"Glycosidic bonds"
] |
A
|
mnlp_stem_mcqa_eval_370
|
The polytene chromosomes seen in Drosophila silvarentis with the aid of a light microscope are
|
[
"not actively carrying out transcription",
"produced only during mitosis",
"produced by repeated rounds of DNA replication followed by nuclear division",
"multiple copies of a single chromosome"
] |
D
|
mnlp_stem_mcqa_eval_371
|
$$h(x)=2^{x}$$The function $h$ is defined above. What is $h(5)-h(3) ?$
|
[
"2",
"4",
"24",
"28"
] |
C
|
mnlp_stem_mcqa_eval_372
|
Alma bought a laptop computer at a store that gave a 20 percent discount off its original price. The total amount she paid to the cashier was $p$ dollars, including an 8 percent sales tax on the discounted price. Which of the following represents the original price of the computer in terms of $p$ ?
|
[
"$0.88 p$",
"$\\frac{p}{0.88}$",
"$(0.8)(1.08) p$",
"$\\frac{p}{(0.8)(1.08)}$"
] |
D
|
mnlp_stem_mcqa_eval_373
|
Which of the following conditions is not caused by a mutation in FGFR3?
|
[
"Achondroplasia",
"Crouzon syndrome",
"Thanatophoric dysplasia",
"Waardenburg syndrome"
] |
D
|
mnlp_stem_mcqa_eval_374
|
Find the degree for the given field extension Q(sqrt(2)*sqrt(3)) over Q.
|
[
"0",
"4",
"2",
"6"
] |
C
|
mnlp_stem_mcqa_eval_375
|
The language {ww | w in (0 + 1)*} is
|
[
"not accepted by any Turing machine",
"accepted by some Turing machine, but by no pushdown automaton",
"accepted by some pushdown automaton, but not context-free",
"context-free, but not regular"
] |
B
|
mnlp_stem_mcqa_eval_376
|
Gene flow between populations results in
|
[
"an increase in genetic homogeneity in the metapopulation",
"an increase in the rate of deleterious mutations in the metapopulation",
"an increased likelihood of speciation",
"disruption of Hardy-Weinberg equilibrium in the metapopulation"
] |
A
|
mnlp_stem_mcqa_eval_377
|
The quantum efficiency of a photon detector is 0.1. If 100 photons are sent into the detector, one after the other, the detector will detect photons
|
[
"exactly 10 times",
"an average of 10 times, with an rms deviation of about 0.1",
"an average of 10 times, with an rms deviation of about 1",
"an average of 10 times, with an rms deviation of about 3"
] |
D
|
mnlp_stem_mcqa_eval_378
|
The quantum efficiency of a photon detector is 0.1. If 100 photons are sent into the detector, one after the other, the detector will detect photons
|
[
"an average of 10 times, with an rms deviation of about 4",
"an average of 10 times, with an rms deviation of about 3",
"an average of 10 times, with an rms deviation of about 1",
"an average of 10 times, with an rms deviation of about 0.1"
] |
B
|
mnlp_stem_mcqa_eval_379
|
A university’s mathematics department has 10 professors and will offer 20 different courses next semester. Each professor will be assigned to teach exactly 2 of the courses, and each course will have exactly one professor assigned to teach it. If any professor can be assigned to teach any course, how many different complete assignments of the 10 professors to the 20 courses are possible?
|
[
"20!/2^(10)",
"10!/2^9",
"10^(20) - 2^(10)",
"10^(20) - 100"
] |
A
|
mnlp_stem_mcqa_eval_380
|
Let G denoted the set of all n x n non-singular matrices with rational numbers as entries. Then under multiplication G is a/an
|
[
"subgroup",
"finite abelian group",
"infinite, non abelian group",
"ininite, abelian"
] |
C
|
mnlp_stem_mcqa_eval_381
|
During DNA replication, mistakes are coded into the leading strand about once every 100,000/1 million copies. This DNA is subject to proofreading by several mechanisms. If a mistake is noted and the incorrect base is removed shortly following the time RNA primer is removed, this would most likely be the work of which repair mechanism?
|
[
"DNA polymerase I",
"DNA polymerase III",
"Mismatch repair mechanism",
"Endonuclease repair"
] |
A
|
mnlp_stem_mcqa_eval_382
|
Which of the following is equivalent to $9^{\frac{3}{4}}$ ?
|
[
"$\\sqrt[3]{9}$",
"$\\sqrt[4]{9}$",
"$\\sqrt{3}$",
"$3 \\sqrt{3}$"
] |
D
|
mnlp_stem_mcqa_eval_383
|
Of the following compounds, which has the lowest melting point?
|
[
"HCl",
"AgCl",
"CaCl2",
"CCl4"
] |
A
|
mnlp_stem_mcqa_eval_384
|
The function $f$ is defined by $f(x)=(x+3)(x+1)$. The graph of $f$ in the $x y$-plane is a parabola. Which of the following intervals contains the $x$-coordinate of the vertex of the graph of $f$ ?
|
[
"$-4<x<-3$",
"$-3<x<1$",
"$1<x<3$",
"$3<x<4$"
] |
B
|
mnlp_stem_mcqa_eval_385
|
A company that makes wildlife videos purchases camera equipment for $\$ 32,400$. The equipment depreciates in value at a constant rate for 12 years, after which it is considered to have no monetary value. How much is the camera equipment worth 4 years after it is purchased?
|
[
"$\\$ 10,800$",
"$\\$ 16,200$",
"$\\$ 21,600$",
"$\\$ 29,700$"
] |
C
|
mnlp_stem_mcqa_eval_386
|
In an SDS-PAGE procedure, the SDS serves as a detergent. Why are the proteins treated with a detergent before being run through the electrophoresis gel?
|
[
"To coat the proteins with a large positive charge, since amino acid side chains may have positive, negative, or neutral charges, and a large uniform charge is necessary to get good separation in the gel.",
"To allow the electrophoresis to separate the proteins solely on the basis of the length of the primary sequence.",
"To prevent the protein from denaturing so that the electrophoresis can accurately resolve the proteins on the basis of tertiary structure.",
"To break the intramolecular bonds holding the tertiary and primary structure of the protein together, thereby generating linear fragments that may be sorted on size."
] |
B
|
mnlp_stem_mcqa_eval_387
|
The first point of entry of water at the roots of a monocot plant is through the cytoplasm of cells of the
|
[
"root cap",
"Casparian strip",
"pericycle",
"endoderm"
] |
D
|
mnlp_stem_mcqa_eval_388
|
All of the following characteristics are typical of r-selected species EXCEPT
|
[
"high reproductive rate",
"small body size",
"occupancy of unstable environments",
"high competitive ability"
] |
D
|
mnlp_stem_mcqa_eval_389
|
Survey Results\begin{center}\begin{tabular}{|l|c|}\hlineAnswer & Percent \\\hlineNever & $31.3 \%$ \\\hlineRarely & $24.3 \%$ \\\hlineOften & $13.5 \%$ \\\hlineAlways & $30.9 \%$ \\\hline\end{tabular}\end{center}The table above shows the results of a survey in which tablet users were asked how often they would watch video advertisements in order to access streaming content for free. Based on the table, which of the following is closest to the probability that a tablet user answered "Always," given that the tablet user did not answer "Never"?
|
[
"0.31",
"0.38",
"0.45",
"0.69"
] |
C
|
mnlp_stem_mcqa_eval_390
|
Which of the following diagnostic techniques is of no value for the diagnosis of neural tube defects?
|
[
"Amniocentesis",
"Chorion villus sampling (CVS)",
"Maternal serum screening",
"Ultrasonography"
] |
B
|
mnlp_stem_mcqa_eval_391
|
All of the following statements about plant embryogenesis are correct EXCEPT:
|
[
"The suspensor is derived from the basal cell.",
"Cotyledons are derived from the apical cell.",
"Shoot apical meristem formation occurs after seed formation.",
"Precursors of all three plant tissue systems are formed during embryogenesis."
] |
C
|
mnlp_stem_mcqa_eval_392
|
If $\frac{5}{x}=\frac{15}{x+20}$, what is the value of $\frac{x}{5} ?$
|
[
"10",
"5",
"2",
"$\\frac{1}{2}$"
] |
C
|
mnlp_stem_mcqa_eval_393
|
The volume of a sphere is given by the formula $V=\frac{4}{3} \pi r^{3}$, where $r$ is the radius of the sphere. Which of the following gives the radius of the sphere in terms of the volume of the sphere?
|
[
"$\\frac{4 \\pi}{3 V}$",
"$\\frac{3 V}{4 \\pi}$",
"$\\sqrt[3]{\\frac{4 \\pi}{3 V}}$",
"$\\sqrt[3]{\\frac{3 V}{4 \\pi}}$"
] |
D
|
mnlp_stem_mcqa_eval_394
|
In a nonrelativistic, one-dimensional collision, a particle of mass 2m collides with a particle of mass m at rest. If the particles stick together after the collision, what fraction of the initial kinetic energy is lost in the collision?
|
[
"0",
"1/4",
"1/3",
"1/2"
] |
C
|
mnlp_stem_mcqa_eval_395
|
What is the greatest possible area of a triangular region with one vertex at the center of a circle of radius 1 and the other two vertices on the circle?
|
[
"1/2",
"1",
"sqrt(2)",
"pi"
] |
A
|
mnlp_stem_mcqa_eval_396
|
A silyl radical bearing an Si-H· fragment has a g value of 2.0033 and a pair of lines separated by 15.5 MHz. Express the splitting in units of mT, Gauss and cm-1.
|
[
"15.5 MHz = 11.104 mT = 27.201 Gauss = 0.862 x 10^-4 cm-1",
"15.5 MHz = 7.352 mT = 10.104 Gauss = 18.39 x 10^-4 cm-1",
"15.5 MHz = 1.55 mT = 0.562 Gauss = 31.0 x 10^-4 cm-1",
"15.5 MHz = 0.553 mT = 5.530 Gauss = 5.17 x 10^-4 cm-1"
] |
B
|
mnlp_stem_mcqa_eval_397
|
The negative muon, mu^-, has properties most similar to which of the following?
|
[
"Electron",
"Meson",
"Photon",
"Boson"
] |
A
|
mnlp_stem_mcqa_eval_398
|
Let V be the vector space, under the usual operations, of real polynomials that are of degree at most 3. Let W be the subspace of all polynomials p (x) in V such that p (0) = p(1) = p(-1) = 0. Then dim V + dim W is
|
[
"4",
"5",
"6",
"7"
] |
B
|
mnlp_stem_mcqa_eval_399
|
Relative error is same as
|
[
"ratio of absolute error and true value.",
"absolute error.",
"true error.",
"none of the above."
] |
A
|
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