7.2 Populations

Question 1

define Population

Answer 1

A group of organisms of the SAME species occupying a particular space at a particular time that can potentially interbreed

Question 2

What is a gene pool

Answer 2

the collection of genes within an interbreeding population at a particular time

Question 3

What is Allele Frequency

Answer 3

How often different alleles occur in the gene pool of a population; it can change over time due to processes such as natural selection

Question 4

What assumptions are made when using the Hardy-Weinberg principle; give 3

Answer 4

Organisms are diploid

Organisms reproduce by sexual reproduction only

There is no overlap between generations, i.e. parents do not mate with offspring

Mating is random

The population is large

There is no migration, mutation, or selection

Allele frequencies are equal in both sexes

Question 5

Outline 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