MS Sample Set 14, Round 12 from NSB
In what phase must the moon be during a total solar eclipse?
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Stony-iron meteorites are most similar in composition to what part of the Earth? W) Core-mantle boundary X) Outer core Y) Inner core Z) Crust
W: W) Core-mantle boundary
X: X) Outer core
Y: Y) Inner core
Z: Z) Crust
Answer: W) W) Core-mantle boundary
Scientists at the Joint BioEnergy Institute are using CRISPR/Cas9 technology on fungi. Which of the following best describes what they are trying to do to the fungi? W) Edit their genomes X) Sequence their DNA Y) Capture ribosomal protein products Z) Analyze their transcriptome
W: W) Edit their genomes
X: X) Sequence their DNA
Y: Y) Capture ribosomal protein products
Z: Z) Analyze their transcriptome
Answer: W) W) Edit their genomes
Scientists at the Joint Genome Institute reported that a group of microbes can synthesize methyl benzene. What is the preferred IUPAC name for this compound?
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Other than skeletal and smooth muscle, vertebrates also possess what type of muscle characterized by high electrical conductivity?
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Which of the following animals best exhibits aposematic coloration as a defense mechanism? W) Leopard X) Zebra Y) Chameleon Z) Bee
W: W) Leopard
X: X) Zebra
Y: Y) Chameleon
Z: Z) Bee
Answer: Z) Z) Bee
If a projectile is dropped from a height of one kilometer with no initial speed, how many meters will it fall in 10 seconds?
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The level of glucose in Rishi’s blood is 90 milligrams per deciliter. If the molar mass of glucose is 180 grams per mole, what is the molarity of glucose in Rishi’s blood, to the nearest millimolar?
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What is 242 – 212?
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To the nearest whole number, 128 kilometers per hour is how many meters per second?
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Which of the following types of clouds would most likely result in precipitation? W) Nimbostratus X) Altostratus Y) Cirrus Z) Cumulus
W: W) Nimbostratus
X: X) Altostratus
Y: Y) Cirrus
Z: Z) Cumulus
Answer: W) W) Nimbostratus
Identify all of the following three ocean floor features that are associated with convergent plate boundaries: 1) Deep-ocean trench; 2) Accretionary wedge; 3) Rift valley.
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Scientists at Lawrence Berkeley National Lab are working on methods to increase the recyclability of PET, a common material in plastic. Which of the following terms best describes PET? W) Inorganic material X) Organic polymer Y) Biopolymer Z) Alkane
W: W) Inorganic material
X: X) Organic polymer
Y: Y) Biopolymer
Z: Z) Alkane
Answer: X) X) Organic polymer
Scientists at Lawrence Berkeley Lab are studying the binding properties of N-acetylglucosamine. This is a sugar in which an acetyl group has been attached to what element in glucosamine?
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Rhizobium bacteria, which are often found in legume roots, are responsible for helping their host plant obtain what essential element?
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In order to fix nearsightedness, a lens must have at least one surface with what type of curvature?
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Uranus has an inclination to orbit of approximately 98 degrees and an orbital period of approximately 84 Earth years. Giving your answer to the nearest whole Earth year, how much time will pass between the summer solstice and the closest vernal equinox on Uranus?
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The Chandrasekhar limit is an upper bound on the mass of what type of star?
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Ejecting electrons from the ground state of a metal atom typically requires light from which of the following regions of the electromagnetic spectrum? W) Radio X) X-ray Y) Infrared Z) Visible
W: W) Radio
X: X) X-ray
Y: Y) Infrared
Z: Z) Visible
Answer: X) X) X-ray
Suppose that a projectile is thrown vertically upwards with a speed of 20 meters per second from the top of a building. The projectile takes 6 seconds to reach the ground. How high was the building in meters, given to one significant figure?
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A rectangle has side lengths that are integers greater than one. Which of the following could be its area? W) 83 X) 89 Y) 91 Z) 97
W: W) 83
X: X) 89
Y: Y) 91
Z: Z) 97
Answer: Y) Y) 91
The mean number of weekly work hours for 16 part-time employees at a store is 17. The mean number of hours for 5 of the employees is 13. To the nearest whole number, what is the mean number of hours for the rest of the employees?
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Scientists at Oak Ridge National Lab are using carbon nanotubes to remove salt from water. What is the VSEPR hybridization of the carbon atoms in these nanotubes?
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In order to study post-translational modifications on proteins, Pacific Northwest National Lab researchers are employing a technique that involves two steps of mass spectrometry, in which ions are fragmented between the two mass spectrometry stages. What is the general term for this type of mass spectrometry?
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What organ in the inner ear serves to detect sound and translate the signal into neurological activity?
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Under physiological conditions, which nitrogenous base has the ability to pair with more than one other type of nitrogenous base?
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One night, Mary started reading at the top of page 124 in her latest science fiction book and finished at the bottom of page 255. How many pages did she read?
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What is the remainder when the polynomial $$x^3 + 4x^2 + x - 7$$ is divided by $$x + 5$$?
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Which of the following is found in the littoral zone? W) Deep sea trench X) Seamount Y) Continental rise Z) Beach
W: W) Deep sea trench
X: X) Seamount
Y: Y) Continental rise
Z: Z) Beach
Answer: Z) Z) Beach
Identify all of the following three minerals that do not exhibit cleavage: 1) Feldspar; 2) Fluorite; 3) Quartz.
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What is the term for the upward force exerted by a fluid on any object submerged in the fluid?
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What type of current is produced by a generator that produces electricity by spinning a loop of wire in a magnetic field?
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When 25 trillion is expressed in scientific notation, what is the exponent of 10?
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A circle with radius 12 is inscribed in a square. To the nearest 10, what is the area of the region inside the square but outside the circle?
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What is the term for the type of symmetry that characterizes the body plan of Cnidarians?
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Place the following three events in the history of life on Earth in chronological order: 1) Emergence of shelled animals; 2) Emergence of fish; 3) Emergence of amphibians.
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Which of the following is closest to the diameter, in meters, of the nucleus of a zinc atom? W) 10^-8 X) 10^-10 Y) 10^-12 Z) 10^-14
W: W) 10^-8
X: X) 10^-10
Y: Y) 10^-12
Z: Z) 10^-14
Answer: Z) Z) 10^-14
Vince measures a cube’s volume in liters, an SI derived unit. If he wants to express the volume in SI base units, what unit should he use?
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What planet in the solar system has prominent surface features called “coronae”?
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The temperature at the core of the Sun, in kelvins, is closest to ten raised to what power?
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What is the slope-intercept equation of the line through the origin that contains the point (3, –36)?
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How many positive integers are divisors of both 60 and 144?
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Which of the following triples of quantum numbers n, l, m are NOT allowed? W) 2, 1, –1 X) 2, 0, 0 Y) 1, 0, –1 Z) 3, 2, 0
W: W) 2, 1, –1
X: X) 2, 0, 0
Y: Y) 1, 0, –1
Z: Z) 3, 2, 0
Answer: Y) Y) 1, 0, –1
What is the term for the bending of a wave as it moves from one medium to another?
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Sequencing in the Human Genome Project involved a process of first fragmenting DNA into many overlapping segments, sequencing each fragment, then piecing everything back together. What is the term for this approach to sequencing?
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Identify all of the following three plants that possess vascular tissues: 1) Ferns; 2) Mosses; 3) Gymnosperms.
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