Explain the additive nature of polygeneic inheritance

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Reference no: EM133934326

Questions

1. 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?

2. 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.

3. 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: EM133934326

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