Mod 6 effect of mutation

Question 1

Gene pool

Answer 1

Refers to all the genes present in all interbreeding organisms in the population

Question 2

Mutation

Answer 2

As the rate of mutation of DNA in germ cells decreases, the frequency of new alleles passed onto offspring will decrease.

Question 3

Gene Flow

Answer 3

Immigration of individuals from one population to another will allow gene flow amongst species in each population.

As the species from the two populations mate and exchange genetic material, the exchange of alleles will increase allele frequency in the population. Increasing genetic variation.

Question 4

Genetic Drift

Answer 4

The event where one or more alleles are lost in a population due to random events that happen by chance. As a result, allele frequency will decrease.

Question 5

What are the two explanations for genetic drift?

Answer 5

Bottleneck Effect:
The chance of a sudden decline in population due to a random event resulted in the loss of one or more alleles for a gene in the population of concern. Leads to a decrease in allele frequency and genetic variation.

Founder Effect: refers to the migration of species.
Species that are separated from the original population are known as the founders of the new population that is established in the new location. By chance, the new population will have different allele frequencies compared to the old population.