Population genetics is the study of:

Evolution of a single organism
Cell division in populations
The distribution of alleles and genes in populations
Human population growth

The total of all alleles in a population is called the:

Phenotype
Genotype
Gene pool
Chromosome map

Rapidly evolving
Not evolving (genetic equilibrium)
Mutating constantly
Decreasing in size

Heterozygous frequency
Homozygous dominant frequency
Homozygous recessive frequency
Allele frequency

Homozygous dominant
Homozygous recessive
Heterozygous frequency
Allele frequency

Which of the following is NOT a condition for Hardy-Weinberg equilibrium?

No mutation
No migration
Large population size
Natural selection occurs

A change in allele frequencies due to random chance is called:

Natural selection
Genetic drift
Gene flow
Mutation

When a few individuals start a new population with different allele frequencies, it is called:

Genetic drift
Founder effect
Bottleneck effect
Gene flow

A sudden reduction in population size due to a disaster that reduces genetic diversity is called:

Founder effect
Bottleneck effect
Genetic equilibrium
Natural selection

The movement of alleles between populations is known as:

Genetic drift
Gene flow (migration)
Mutation
Bottleneck

Which type of selection favors individuals with intermediate phenotypes?

Directional selection
Stabilizing selection
Disruptive selection
Random selection

Which type of selection favors both extremes of a trait?

Stabilizing selection
Directional selection
Disruptive selection
Artificial selection

When one extreme phenotype is favored over the others, it is called:

Disruptive selection
Stabilizing selection
Directional selection
Random drift

Mutations are important to populations because they:

Decrease genetic diversity
Introduce new alleles into the gene pool
Always cause harmful effects
Prevent natural selection

A population in which allele frequencies change due to selective pressures is undergoing:

Genetic equilibrium
Genetic drift
Evolution
Bottleneck

Inbreeding within a population tends to:

Increase genetic diversity
Prevent recessive alleles from appearing
Increase homozygosity
Eliminate mutations

The proportion of dominant allele (p) and recessive allele (q) in a population must add up to:

0.5
2
1
100

Which evolutionary force tends to increase genetic variation within a population?

Genetic drift
Natural selection
Non-random mating
Mutation and gene flow

Which concept best explains why isolated populations may evolve differently over time?

Stabilizing selection
Genetic drift and lack of gene flow

Mutation never occurs

The study of allele frequency changes in populations over time is directly linked to:

Cell biology
Ecology
Evolutionary biology
Anatomy