Which evolutionary process is most pronounced in small populations where statistical fluctuations in allele frequencies can be significant from one generation to the next?
A) natural selection
B) migration
C) mutation
D) random genetic drift
E) population genetics
D
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The ________ chains are structurally distinct for each immunoglobulin class.
Fill in the blank(s) with the appropriate word(s).
The data below shows recombination of genes (1-5) according to the amount of time available for transfer of the bacterial chromosome during conjugation between different genetic strains in E coli. Based on these data, which gene is closest to gene 1? (Note: The entire chromosome is transferred in 100 minutes.)
A. gene 2
B. gene 3
C. gene 4
D. gene 5
During breeding season, one should expect female house finches to prefer to mate with males with the brightest red feathers. Which of the following is true of this situation?
A) Alleles that promote more efficient acquisition of carotenoid-containing foods by males should increase over the course of generations. B) Alleles that promote more effective deposition of carotenoid pigments in the feathers of males should increase over the course of generations. C) There should be directional selection for bright red feathers in males. D) All three of these. E) Only B and C.
Compare the lytic cycle and the lysogenic cycle of bacteriophages
What will be an ideal response?