3.7.2 Populations (Genetics , population , evolution and ecosystems 3.7)

Question 1

what is a population

Answer 1

a group of organisms of the same species in a particular space at a particular time
that can interbreed

Question 2

what is a gene pool

Answer 2

all the alleles of all the genes in a population at any one time

Question 3

what is allele frequency

Answer 3

proportion of an allele of a gene in a gene pool

Question 4

what does the hardy weinberg principle state and what are the conditions under which the principle applies

Answer 4

allele frequencies will not change from generation to generation given :
- population is large
- no immigration
- no mutation
- no selection
- mating is random

Question 5

what is the hardy weinberg equation

Answer 5

p^2 + 2pq + q^2 = 1
p+ q = 1
p = frequency of dominant allele
q = frequency of recessive allele
p^2 = frequency of homozygous dominant genotype
2pq = frequency of heterozygous genotype
q^2 = frequency of homozygous recessive genotype