Mechanisms of Evolution: Hardy-Weinberg Equilibrium

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What is the condition for the allele frequencies in the gamete pool to be the same as the overall frequency of each allele in the present generation?

Gene flow is restricted
No selection pressure is present (correct)
Genetic drift occurs
Random mating occurs

What is the effect of the bottleneck effect on the genetic diversity of a population?

It decreases the genetic diversity (correct)
It has no effect on genetic diversity
It increases the genetic diversity
It leads to fixation of alleles

What is the role of gene flow in a population in Hardy-Weinberg equilibrium?

It leads to fixation of alleles
It has no effect on genetic diversity
It increases genetic diversity (correct)
It leads to genetic drift

What is the relationship between the allele frequencies and genotype frequencies in a population in Hardy-Weinberg equilibrium?

The allele frequencies determine the genotype frequencies (A) Signup and view all the answers

What is the effect of natural selection on the genetic diversity of a population?

It decreases genetic diversity (D) Signup and view all the answers

What is the primary condition for a population to be in Hardy-Weinberg equilibrium?

All alleles confer equal fitness, and there is no natural selection. (A) Signup and view all the answers

What is the fundamental assumption in Hardy-Weinberg equilibrium regarding the alleles in the gamete pool?

They mirror those in the parent generation (A) Signup and view all the answers

What would happen to the genetic diversity of a population if it experiences a bottleneck effect?

The population's genetic diversity would decrease due to the loss of alleles. (D) Signup and view all the answers

What is the primary mechanism by which genetic diversity is reduced in a population?

Genetic drift (A) Signup and view all the answers

What is the term for the process by which a single allele becomes fixed in a population, leading to a loss of genetic diversity?

Fixation (C) Signup and view all the answers

What is the result of a severe reduction in population size, leading to a loss of genetic diversity?

Bottleneck effect (A) Signup and view all the answers

What would happen to the allele frequency of a population if there is gene flow from a neighboring population?

The allele frequency would change due to the introduction of new alleles. (B) Signup and view all the answers

What is the term for the collection of alleles present in a population?

Gene pool (B) Signup and view all the answers

What is the term for the movement of alleles from one population to another, leading to an increase in genetic diversity?

Gene flow (B) Signup and view all the answers

What is the process by which a single allele becomes fixed in a population, leading to a loss of genetic diversity?

Fixation (B) Signup and view all the answers

What is the outcome of a population experiencing a bottleneck effect?

Reduced genetic diversity due to the loss of alleles (B) Signup and view all the answers

What is the primary factor that maintains genetic diversity in a population in Hardy-Weinberg equilibrium?

Random mating (D) Signup and view all the answers

What is the result of gene flow in a population in Hardy-Weinberg equilibrium?

Increased genetic diversity due to the introduction of new alleles (D) Signup and view all the answers

What is the difference between genetic drift and natural selection in terms of their impact on genetic diversity?

Genetic drift reduces genetic diversity, while natural selection increases it (B) Signup and view all the answers

What is the relationship between allele frequency and genetic diversity in a population in Hardy-Weinberg equilibrium?

A high allele frequency leads to high genetic diversity (D) Signup and view all the answers

What condition ensures allele frequencies in gametes match the overall population?

The frequency of each allele in the gamete pool is identical to the overall frequency of that allele in the current generation.

How does the bottleneck effect impact genetic diversity?

The bottleneck effect dramatically reduces genetic diversity within a population by eliminating many alleles.

What role does gene flow play in Hardy-Weinberg equilibrium?

Gene flow introduces new alleles into a population, increasing its genetic diversity.

What is the link between allele and genotype frequencies in Hardy-Weinberg equilibrium?

Allele frequencies directly determine the genotype frequencies in a population at Hardy-Weinberg equilibrium.