Question 1

Which scientist is credited with refuting the anti-Darwinian ideas in the 1930s and synthesizing Darwin's theory with genetics, systematics, and paleontology?

Accepted Answer

Theodosius Dobzhansky

Question 2

What is the primary mechanism by which variation arises in a population according to modern evolutionary theory?

Accepted Answer

Mutation and recombination of alleles

Question 3

Which of the following best describes the process of natural selection?

Accepted Answer

It amplifies variation that arises by mutation and recombination.

Question 4

Which equation represents the Hardy-Weinberg equilibrium for a population with two alleles, $$p$$ and $$q$$?

Accepted Answer

$$p^2 + 2pq$$ + $$q^2 = 1$

Question 5

A population of beetles has two alleles for color: $$B ($$black) and $$b ($$brown). If the frequency of $$B is 0.7 $$and $$b is 0.3$$, what is the expected frequency of heterozygotes under Hardy-Weinberg equilibrium?

Accepted Answer

$$0.42$$

Question 6

Which concept did Darwin introduce that was revolutionary compared to previous static views of species?

Accepted Answer

Species change over time through natural selection.

Question 7

Which of the following statements about mutations is correct?

Accepted Answer

Mutations occur randomly and are not directed by need.

Question 8

Which of the following is NOT a component of the modern synthesis of evolutionary biology?

Accepted Answer

Inheritance of acquired characteristics

Question 9

What is the main difference between adaptation and acclimatization?

Accepted Answer

Adaptation is a genetic change over generations; acclimatization is a short-term physiological response.

Question 10

Which of the following best explains why genetic drift is more significant in small populations?

Accepted Answer

Random changes in allele frequencies have a larger effect in small populations.

Question 11

Which process is responsible for the movement of alleles between populations?

Accepted Answer

Gene flow

Question 12

Which of the following is a real-world example of natural selection?

Accepted Answer

The development of antibiotic resistance in bacteria

Question 13

Which statement about evolutionary genomics is correct?

Accepted Answer

It examines genetic variation and evolution in entire genomes.

Question 14

Which of the following is NOT a method used to study evolutionary relationships among species?

Accepted Answer

Examining patterns of inheritance of acquired traits

Question 15

Which equation would you use to calculate the expected genotype frequencies in a population under Hardy-Weinberg equilibrium?

Accepted Answer

$$p^2 + 2pq$$ + $$q^2 = 1$

Question 16

A population of 1000 individuals has 360 homozygous dominant ($$AA$$), 480 heterozygous ($$Aa$$), and 160 homozygous recessive ($$aa) $$individuals. What is the frequency of the $$A$$ allele?

Accepted Answer

$$0.6$$

Question 17

Which of the following best describes the role of recombination in evolution?

Accepted Answer

It amplifies variation by shuffling existing alleles.

Question 18

Which scientist's work in the 1970s and 1980s expanded evolutionary studies into phylogenetic relationships using DNA sequences?

Accepted Answer

Allan Wilson

Question 19

Which of the following is a key insight from Darwin's theory of evolution?

Accepted Answer

Species change over time due to natural selection acting on heritable variation.

Question 20

Which of the following is a plausible consequence of gene flow between two populations?

Accepted Answer

Increased genetic similarity between populations

Foundations and Mechanisms of Evolutionary Biology

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