Evolution & Ecology Review

What was revolutionary about Darwin and Wallace's theory of evolution by natural selection?

• It confirmed that species are unchangeable.

• It emphasized the importance of variation and change in populations.

• It proposed that natural selection is irrelevant to evolution.

• It supported the idea that all species originated from a single ancestor.

Who were the first to propose natural selection as the mechanism of evolution?

• Mendel and Morgan

• Lamarck and Darwin

• Darwin and Wallace

• Watson and Crick

Why is genetic variation important in a population?

• It allows for natural selection to occur.

• It increases the rate of mutation.

• It decreases biodiversity.

• It stabilizes the population size.

What is likely to happen in an isolated population in terms of genetic variation?

• Increase in genetic variation

• Decrease in genetic variation

• No change in genetic variation

• Rapid increase in population size

What type of species are mostly found in an isolated population with decreased genetic variation?

• Invasive species

• Endemic species

• Migratory species

• Domesticated species

What does the equation "p + q = 1" represent in the context of Hardy-Weinberg Equilibrium?

• The sum of the frequencies of two alleles in a gene pool equals one.

• The probability of two independent events occurring simultaneously.

• The mutation rate of alleles in a stable population.

• The genetic drift in small populations.

In the Hardy-Weinberg Equilibrium, what does 'p' typically represent?

• Frequency of the dominant allele

• Frequency of the recessive allele

• Total number of alleles in the population

• Mutation rate of the dominant allele

What does 'q' represent in the Hardy-Weinberg principle?

• Mutation rate of the recessive allele

• Frequency of the dominant allele

• Frequency of the recessive allele

• Total number of alleles in the population

What does the term "p^2" in the Hardy-Weinberg equation represent?

• Frequency of the heterozygous genotype

• Frequency of the homozygous recessive genotype

• Frequency of the homozygous dominant genotype

• Total number of alleles in the population

According to the Hardy-Weinberg equilibrium, what does "2pq" represent?

• Frequency of the homozygous dominant genotype

• Frequency of the homozygous recessive genotype

• Frequency of the heterozygous genotype

• Total number of alleles in the population