Which of the following types of genetic variations would be most easily detectable by gel electrophoresis as a size difference in a PCR-generated DNA fragment?
A: Transitions
B: HMRs
C: STRs
D: SNPs
E: palindromes
Answer: C: STRs
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Which of the following best describes the process of ventilation?
A) the movement of oxygen gas through the blood of the circulatory system B) the movement of carbon dioxide gas through the blood of the circulatory system C) the movement of the respiratory medium past the respiratory surface D) the diffusion of gases into and out of the circulatory system E) the diffusion of gases into and out of tissues where cellular respiration occurs
They might be conducting such an experiment to _____
A) find the location of a particular gene in the human genome B) prepare to isolate the chromosome on which a particular gene of interest C) find which of the students has which alleles D) measure the expression of one or more genes in their genomes E) determine if any of them carries an extra sex chromosome
Which of the following phrases INCORRECTLY completes the following statement? The Hox complexes of vertebrates
A. encode the same genes as those found in the Antennedepia and bithorax complexes. B. follow the colinearity rule. C. are arranged in groups of four complexes in all organisms that possess them. D. determine the anteroposterior axis. E. suggest there is a basic body plan that is followed by all multicellular organisms.
What is the purpose of vitamins in the human body?
A) Vitamins are sources of stored energy. B) Vitamins help enzymes function properly. C) Vitamins act as hormones that trigger cells to take up glucose. D) Vitamins are the basis of the plasma membrane.