In a human germ cell, a replication slippage event occurs during the round of DNA replication just before meiosis. The slippage event occurred within the DNA sequence that encodes for the first exon of the KRT1 gene. The KRT1 gene encodes for the protein keratin which is found highly expressed in skin cells. The slippage event described has the potential to result in what type of mutation?

A. a somatic missense mutation
B. a somatic frameshift mutation
C. a somatic silent mutation
D. a germline missense mutation
E. a germline frameshift mutation
F. a germline silent mutation

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system

Which list is in order from simplest to most complex? a bacteria - virus - plant - protist b protist - bacteria - virus - plant c virus - bacteria - plant - protist d virus - bacteria - protist - plant