Biol 345 Exam 2 Asu (75 Q&a)

An important consequence of linkage disequilibrium is known as? {Ans: Hitchhiking; This happens when an allele at one locus spreads by natural selection acting on a second locus that is in linkage disequilibrium with the first.}Which event will not alter an organism's karyotype? {Ans: Sequence inversion}Why is sexual selection a theory? {Ans: Explains extravagant traits- ex: peacock tail}Because increased fecundity means increased fitness, we might expect to observe the evolution of ever-increasing fecundity, but this is not the case. Which reason for lower-than-expected fecundity is plausible? {Ans: There are allocation trade-offs between fecundity and other traits.}Suppose five boats are adrift at sea, each one containing a number of your relatives, and you have the power to save one boat from a dire fate. According to kin selection theory, it would be in the best interest of your genome to save a boat that contains? {Ans: one sister, one half-brother, and three cousins.}The relationship between a plant and an herbivore is most closely analogous to the relationship between {Ans: a host and its parasites}