Chapter 9.2 Migration

Question 1

Other than mutations, how else can allele frequency change in a gene pool?

Answer 1

Can be due to gene flow brought by migration

Question 2

What is migration?

Answer 2

-When individuals move between populations
-It can include emigration and immigration

Question 3

What is gene flow?

Answer 3

The movement of genetic material from one population to another

Question 4

How is China used as an example for migration and allele frequency change?

Answer 4

-In the past, the Chinese population all have the Rh-positive blood group.
-The Rh or Rhesus factor, is an antigen found on the surface of a red blood cell.
-People with this antigen are referred to as Rh+ (those who do not have the antigen are Rh-)
-European immigrants and sailors introduced the Rh- allele into the Chinese population.
-However the frequency of the allele is still very low in China compared to other countries

Question 5

Use an example of how the distribution of the ABO blood groups has been influenced by migration

Answer 5

-An example of how the distribution of ABO blood groups has been influenced by migration is the change in the frequency of the Iᴮ