Theodore Diner was able to determine that viroids
are composed of RNA by using which of the
following techniques?
a. cDNA library creation
b. nucleotide sequencing
c. chemical analysis
d. treatment with enzymes that destroy RNA
e. all of the above
Answer: d
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A decrease in cortisol triggers a negative
feedback loop and causes release of a. adrenocorticotropin. b. cortisol. c. corticotropin releasing hormone. d. insulin. e. thyroxine
Understanding cell division requires knowledge about
a. information that guides inheritance. b. how information in a parent cell is copied. c. mechanisms that distribute information to daughter cells. d. mechanisms that ensure new individuals receive parental information. e. all of these.
All of the following statements concerning characteristics of predator prey relationships are correct EXCEPT
A. A rise in the population of prey is often followed by a rise in population of predators B. A rise in the population of predators is followed by a decrease in the population of prey C. Camouflage is an adaptation that protects prey D. The production of large numbers of offspring within very short periods of time ensures the survival of some prey populations E. The population of predators most often eliminates the population of prey
When unrelated organisms living under similar environmental demands evolve superficially similar structures, it is called
A) coevolution. B) convergent evolution. C) comparative anatomy. D) superficial selection.