Chapter 23.2 The Hardy Weinberg Equation can be used to test whether a population is evolving

Question 1

POPULATION

Answer 1

a group of individuals of the same species that live in the same area and interbreed, producing fertile offspring

Question 2

GENE POOL

Answer 2

A populations genetic makeup which consists of all copies of every type of allele at every locus in all members of the population

Question 3

Fixed allele

Answer 3

If only one allele exist for a particular locus.. all individuals are homozygous for that allele

Question 4

HARDY- WEINBERG PRINCIPLE

Answer 4

States that the frequencies of alleles and genotypes in a population will remain constant from generation to generation, provided that only Mendelian segregation and recombination of alleles are at work.
. such a gene pool is in Hardy Weinberg equilibrium

Question 5

the equation for H-W equilibrium states that

Answer 5

a locus with 2 alleles,the 3 genotypes will appear in the following proportions:
p^2 ( expected frequencyof genotype CrCr) + 2pq( expected frequency of genotype CrCw) + q^2 (Expected frequency of genotype CwCw).
. Note that for a locus with 2 alleles, only 3 genotypes are possible
.If the population is not evolving, then the population is said to be in Hardy-Weinberg equilibrium

Question 6

a population is in H-W equilibrium only if

Answer 6

The genotype frequencies are such that the actual frequency of one homozygote is p^2, the actual frequency of the other homozygote is q^2, and the actual frequency of heterozygotes is 2pq

Question 7

The 5 conditions for H-W equilibrium

Answer 7

The principle describes a hypothetical population that is not evolving 9 it is used to test for evolution in comparison )
. We can conclude that a population may be evolving if its genotype frequencies differ from those predicted by the Hardy-Weinberg principle.
. No Mutation
. Random Mating
. No Natural Selection
. Extremely large population
. No Gene Glow