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Evolutionary Changes in Population - Introduction to Evolutionary Biology

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Evolutionary Changes in Population - Introduction to Evolutionary Biology

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Questions and Answers

What is the study of genetic variability within a population and the evolutionary forces that act on it called?

Genomic sequencing

Genetic drift

Population genetics (correct)

Population dynamics

In population genetics, what does genotype frequency refer to?

The proportion of a particular phenotype in a population

The proportion of genetic variability in a population

The proportion of a particular genotype in a population (correct)

The proportion of a specific allele in a population

According to the Hardy-Weinberg Principle, what is one of the conditions for allele frequencies to remain constant from generation to generation?

Gene flow allows new alleles to enter or exit the population

New alleles are continuously generated by mutation

Organisms preferentially mate based on their genotypes

All alleles confer equal fitness and survival advantage (correct)

In the context of the Hardy-Weinberg Principle, what does phenotype frequency represent?

The proportion of a particular phenotype in a population Signup and view all the answers

Why is it necessary for the population size to be effectively infinite according to the Hardy-Weinberg Principle?

To prevent genetic drift and maintain allele frequencies stable Signup and view all the answers

If the percentage of a homozygous recessive genotype (aa) in a sampled population is known, what can be calculated using this information?

Frequency of the heterozygous genotype (Aa) Signup and view all the answers

What is the definition of a population according to the passage?

A group of individuals of the same species that live in a particular place at the same time. Signup and view all the answers

What is the source of variation within a population according to the passage?

Heredity and environment. Signup and view all the answers

What is the definition of a homozygous individual according to the passage?

An individual with two of the same alleles for a given genomic location. Signup and view all the answers

What is the definition of a heterozygous individual according to the passage?

An individual with two different alleles for a given genomic location. Signup and view all the answers

What is the definition of a gene pool according to the passage?

All the alleles for all the loci present in the population. Signup and view all the answers

What is the main focus of understanding the evolution of populations according to the passage?

The genotype, phenotype, and allele frequencies of the population. Signup and view all the answers