All Quiz Questions And Answers |78 Questions| With Correct Answers.

A mule is a cross between a horse and a donkey. From a genetic perspective, why is the mule sterile? {Ans: The mule has one extra chromosome without a homolog.}Define temporal isolation and give a real world example. {Ans: (Prezygotic Barrier): Species that breed during different times of the day, different seasons, or different years cannot mix their gametes Skunks have different mating seasons}Cotton-topped tamarins are small primates with tufts of long white hair on their heads. While studying these creatures, you notice that males with longer hair get more opportunities to mate and father more offspring. To test the hypothesis that having longer hair is adaptive in these males, you should _____. A) test whether other traits in these males are also adaptive B) look for evidence of hair in ancestors of tamarins C) determine if hair length is heritable D) test whether males with shaved heads are still able to mate {Ans: C) determine if hair length is heritable}Although many chimpanzees live in environments containing oil palm nuts, members of only a few populations use stones to crack open the nuts. The likely explanation is that __________. A) the behavioral difference is caused by genetic