What is polygenic inheritance and plieotropy

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Reference no: EM133934063

Question 1

Draw, label, caption and upload a diagram showing how a testcross works.

Question 2

Draw, label, caption and upload a diagram that shows what incomplete dominance is and how it works. Include the following:

A monohybrid cross between true breeding P generation.
A monohybrid cross between heterozygous F1 generation.
A punnet square showing genotypes of F2 generation.
Phenotype ratio of F2 generation.

Question 3

What is codominance?

How does codominance work in the ABO blood group?

Why are people with type O blood considered universal donors?

Why are people with type AB blood considered universal recipients?

Question 4

What is plieotropy?

Explain how plieotropy affects genetic patterns of inheritance using the sickle cell example.

If sickle cell disease is usually fatal, why is the allele still found in many people of African descent? Please explain your answer in terms of natural selection.

Question 5

What is polygenic inheritance?

Using the simplified skin pigment example, explain the additive nature of polygeneic inheritance.

Why are there so many possible phenotypes when this pattern of inheritance is involved?

Reference no: EM133934063

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