Shaping Evolutionary Theory

Which of these is a condition that must be met for Hardy-Weinberg equilibrium?

• extremely small population size

• gene flow

• no natural selection

• nonrandom mating

If the frequency of recessive allele is 0.2, what is the frequency of the homozygous recessive individuals?

• 0.04

• 0.16

• 0.4

• 0.8

If the frequency of dominant phenotype is 0.36, what is the frequency of the dominant allele?

• 0.2

• 0.48

• 0.6

• 0.8

A type of genetic drift in which small groups of organisms separate from a larger population and form new small colonies.

• Gene Flow

• Founder Effect

• Natural Selection

• Artificial Selection

This is the process that ultimately creates new variations and changes in DNA; leads to the creation of new alleles

• Mutation

• Natural selection

• Microevolution

• Gene flow / genetic drift

This is a pattern of natural selection where one extreme form of a trait is more advantageous than the average or the opposite extreme; as a result, this trait in the population tends to evolve towards that one extreme

• Directional selection

• Stabilizing selection

• Disruptive selection

• Forward selection

What does the picture represent?

• Founder Effect

• Bottleneck effect

• Mutations

• Gene Flow

When a population becomes divided by an event such as a new river forming, ____________ has occurred.

• Differentiation 

• Adaptation

• prezygotic isolation

• postzygotic isolation

Ants are the correct size and weight needed to open the flowers for the peony plant. The peony plant provides food for the ant and the ant fertilizes the peony’s flowers

• Convergent evolution

• Coevolution

• Adaptive radiation

The Galápagos finches evolved through natural selection from a common ancestor into a wide variety of different looking species.

• Convergent evolution

• Coevolution

• Adaptive radiation