Why are the predator and prey growth curves out of phase?
a. Because both predator and prey are responding to changes in the previousgeneration of the other population
b. Because neither population can respond instantly to changes in the otherpopulation.
c. Because reproductive cycles in either population cause a delay in response tothe other population.
d. All of the above.
d
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Which of the following questions is about gene regulation? Select all correct choices
A. Why do all eukaryotes share a common genetic code? B. Where are genes for hemoglobin expressed? C. How much insulin is produced after a meal?
A protein that interacts with an antibody is called a(n) ____________________
Fill in the blank(s) with correct word
When DNA probes are used to identify bacterial DNA similarities by hybridization, the probe DNA is heated and the template DNA is treated to separate the two strands.Why would the probe DNA be heated?
A. This is the only way to properly label the probe DNA. B. The probe may contain portions that are double-stranded. Heating it up breaks any possible hydrogen bonds that may have formed allowing the single-stranded sequences to hybridize with their complementary targets. C. Heating it up activates the tag on the probe DNA before it hybridizes to the bacterial template DNA. D. DNA hybridization can only take place at high temperatures, so all the DNA must be heated up prior to hybridization.
Divergent evolution occurs when:
a. closely related populations or species diverge from one another because natural selection op-erates differently on each of them. b. two or more populations or species become more similar to each other because they are ex-posed to similar selective conditions. c. Both of the above. d. Neither of the above.