Why do different mutations accumulate in two species once they diverge?
A. They can no longer mate and swap the mutation.
B. The molecular clock runs at different speeds in different species.
C. The mutations make the species different.
D. convergent evolution
E. Natural selection favors mutations in one species over another.
A. They can no longer mate and swap the mutation.
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The enzyme required to attach the sticky ends of DNA and used when splicing DNA fragments into other DNA is ________.
A. helicase B. ligase C. endonuclease D. reverse transcriptase
Genetic drift has an especially significant effect in what kind of populations?
A. populations that are large B. populations that are small C. populations with high genetic variability D. populations that are in Hardy-Weinberg equilibrium E. populations that are migrating
The cellulase-excreting protist that can account for up to one-third of the biomass of a termite is a member of the genus
A. Trichonympha. B. Euglena. C. Hexamida. D. Trichomonas.
When grouping organisms, which classification is most general for a particular type of organism?
A. Kingdom B. Phylum C. Order D. Family E. Species