Below are questions concerning population genetics. I have my answers but would like other imput before I submit the answers. I appreciate all of the help.
The mean beak depth of a particular finch species is 15 millimeters. Assuming the trait is heritable what would happen to the mean beak depth after several generations of stabilizing selection?
A.The mean should be less than 15mm
B.The mean should be more than 15mm
C.The mean will change randomly
D.The mean should not change
A sea star roams the intertidal zone eating barnacles. The sea star does not care which type of barnacle it finds, it just eats whatever it finds. What type of selection is the sea star exerting on the barnacle population?
A.Diversifying selection
B.Negative frequency dependent selection
C.Artificial selection
D.Oscillating selection
A population of freshwater fish has been drastically reduced in size due to the construction of a dam. However, over time the population numbers rebound. What has happened to the genetic variability in this population?
A.It has decreased
B.It has increased
C.It stayed the same
Male Anolis lizards use dewlap displays to attract females. If in a single species, males with darker colored dewlaps tend to display in open habitats and males with lighter colored dewlaps tend to display in forested habitats, the resulting offspring may start to diverge into 2 groups. What could be occurring?
A.random mating
B.Hardy-Weinberg equilibrium
C.Disruptive selection
D.Stabilizing selection
Humans do not follow all of the assumptions of the Hardy-Weinberg equilibrium. What assumptions ARE true for humans?
A.Large population size
B.No mutations
C.Random mating
D.No selection
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