18.1 population genetics

Question 1

what is a gene pool?

Answer 1

all alleles of all the genes of all of the individuals in a population at a given time

Question 2

what is allelic frequency?

Answer 2

number of times an allele occurs within a gene pool

Question 3

what does the hardy-weinberg principle assume?

Answer 3

the proportion of dominant & recessive alleles of any gene in a population remains the same from 1 generation to another

Question 4

what 5 conditions are necessary for the assumption of hardy-weinberg?

Answer 4

• no mutations arises
• isolated population, no flow of alleles in / out
• no selection
• random mating
• large population

Question 5

what are the 2 hardy-weinberg equations?

Answer 5

p + q = 1
p2 + 2pq + q2 = 1