Population Genetics

Question 1

What is a population

Answer 1

Is a group of organisms of the same species that occupies a particular space at a particular time and that can potentially interbreed

Question 2

What’s a gene pool

Answer 2

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

Question 3

What’s the allelic frequency

Answer 3

The number of times an allele occurs within the gene pool

Question 4

What does the hardy Weinberg principle calculate

Answer 4

The frequencies of the alleles of a particular gene in a population

Question 5

What assumption does the hardy Weinberg principle make?

Answer 5

That the proportion of dominant and recessive alleles of any gene in a population remains the same from one generation to the next

Question 6

What conditions have to be met for hardy Weinberg

Answer 6

No mutations arise

The population is isolated, that is, there is no flow of alleles into or out of the population

There is no selection, that is, all alleles are equally likely to be passed to the next generation

The population is large

Mating within the population is random

Question 7

___________ can be used to test wether something applies to a particular allele in particular populations

Answer 7

Hardy Weinberg principle

Question 8

What’s the hardy Weinberg formulas

Answer 8

P+Q=1

P+2pq+Q=1

Question 9

What does p, q, 2pq, p* and q* all mean

Answer 9

P- frequency of one allele (usually dominant )

Q-frequency of the other allele ( usually recessive)

2pq- frequency of heterozygous genotype

Q*- frequency of homozygous recesive genotype

P*- frequency of the homozygous dominant genotype

Question 10

Practice hardy Weinberg questions. Look in Sarah folder. Good example.

Answer 10

Ok