Dna _____
a. guides growth and development
b. is the basis of traits
c. is transmitted from parents to offspring
d. all of these
D
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Triglycerides yield how much more energy, gram for gram, than carbohydrates?
a. twice as much b. three times as much c. four times as much d. one half as much e. about the same amount
Two populations experience equally severe bottlenecks, reducing each to one-tenth of its original size. One population is in the bottleneck for one generation, and the other is in the bottleneck for five generations
You assess the heterozygosity of both populations after they have been restored to their prebottleneck size. What do you expect to find, and why?
Prey reduce their risk of predation through physical and behavioral defenses. Which of the following is NOT a physical defense for the reduction of predation?
a) the camouflage of a praying mantis b) the spiciness of a jalapeno pepper c) the warning coloration of a monarch butterfly d) the alarm call of a Belding's ground squirrel e) the armor of an armadillo
Which of the following is NOT a common antimicrobial drug resistance mechanism in pathogenic bacteria?
a. dimerization of the compound b. efflux pump to avoid cytoplasmic accumulation c. inactivating the compound with modifying enzymes d. structural alteration of the target biomolecule type