ANSC 221 Exam 4 Population Genetics

What is a gene pool?

all of the alleles for every gene in a given population

What is population?

A group of individuals of the same species that occupy the same environment and can inter breed with one another

What is Polymorphism?

Many traits display variation within a population. Genes are usually polymorphic

What is polymorphism due to??

2 or more alleles that influence phenotype

What is a polymorphic gene?

gene with 2 or more alleles

What is a monomorphic gene?

A gene with predominately single allele

What do large healthy population have?

A high level of genetic diversity

What does population genetics focus on?

How genes behave in populations rather than individual matings

How does population use Mendelian principles?

to make predictions about outcomes in the population at large

Requirements for presence of an equilibrium in allele frequencies in a population

Mating is random, Population infinitely large, no mutation, no selection, no migration