Download Essay Review Sheet #1 Biology 7

Essay Review Sheet #1 Biology 7

Suppose a population of organisms with 500 gene loci is fixed at half of these loci, and has two alleles at
each of the other loci. How many alleles are found in its gene pool? Explain.

Explain why natural selection is the only evolutionary mechanism that consistently leads to adaptive
evolution.

Summarize key differences between allopatric and sympatric speciation. Which type of speciation is more
common, and why?

Which species concept could you apply to both asexual and sexual species?

To distinguish a particular clade of mammals within the larger clade that corresponds to class Mammalia,
why is hair not a useful
characteristic?

Explain how comparisons between the proteins of two species can yield data about their evolutionary
relationship.