Which of the following statements about genetic drift is correct? Genetic drift causes predictable fluctuations in allele frequencies from one generation to the next and do not affect genetic variation within populations. Genetic drift causes unpredictable fluctuations in allele frequencies from one generation to the next and does not affect genetic variation within populations Genetic drift causes predictable fluctuations in allele frequencies from one generation to the next and increases genetic variation within populations. Genetic drift causes unpredictable fluctuations in allele frequencies from one generation to the next and tend to reduce genetic variation within populations Genetic drift causes predictable fluctuations in allele frequencies from one generation to the next and reduces genetic variation within populations.

The Hardy-Weinberg principle states if a population is at equilibrium the allele frequencies stay constant and the population isn’t evolving.  There are five conditions that have to be met for a population not to be evolving.  List them below.   Condition 1: Condition 2: Condition 3: Contition 4: Condition 5:

Five conditions are required to maintain the Hardy–Weinberg equilibrium in a population. Closed population Large population Random mating No net mutations No natural selection If any of these conditions is not being met, the allele frequencies in the population will change, leading to microevolution in the population.Match each of the following scenarios to the Hardy–Weinberg condition that is NOT being met:An increase in antibiotic resistance among bacteria exposed to antibiotics occurs. AnswerCaribou from one herd move to a new area and breed with caribou of a completely different herd. Answer Among eastern bluebirds, more brightly coloured males breed with more brightly coloured females.  AnswerDue to overhunting, there is little genetic diversity in the current population of bearded vultures, which have all descended from a population of only 36 birds.  Answer

The figure below represents a map of 3 islands (labelled A, B, and C). The allele frequencies for one gene (with two alleles, H and h) in populations of a plant species found on all 3 islands is given for each island Which of the following statements is most likely to be correct? H = 0.95 h = 0.05 H = 0 h = 1.0 H = 1.0 h = 0 %3D O The population on island C is smaller than those on islands A and B. O There is very little migration between islands A and B. O There is a significant amount of migration between islands A and B. O The environments on islands A andB are very similar.