Populations

Question 1

Define species

Answer 1

A group of organisms that can interbreed to produce fertile offspring

Question 2

Define population

Answer 2

All the organisms of a particular species that live in the same place

Question 3

Define gene pool

Answer 3

All the genes of all of the individuals in a population

Question 4

Define allele frequency

Answer 4

The number of times an alleles occurs within the gene pool

Question 5

How many alleles per gene

Answer 5

2

Question 6

What is the hardy Weinberg principle

Answer 6

Allows us to estimate the frequency of alleles in a population as well as if allele frequency is changing over time

Question 7

Give assumptions made by the hardy Weinberg principle

Answer 7

• no mutation occur to create new alleles
• no migration in or out of the population
• o selection occurs, so alleles are all equally passed on to next gen
• random mating
• large population

Question 8

Calculation for frequency of alleles

Answer 8

p+ q = 1

p = frequency of teh dominant allele
q = frequency of recessive allele

Question 9

Hardy Weinberg equation for calculating genotype and phenotype frequency

Answer 9

p2 + 2pq + q2 = 1

p2 = frequency of homozygous dominant phenotype/genotype

q2 = frequency of homozygous recessive phenotype/genotype

2pq = frequency of heterozygous genotype/phenotype