11 Hemophilia is a condition that results in abnormal blood clotting. Normal blo

Question

11 Hemophilia is a condition that results in abnormal blood clotting. Normal blood The gene for this condition is located on the X chromosome. A woman clotting is dominant over non- who is heterozygous for hemophilia clotting. ia. What is the probability that they will have a child with hemophilia? What is the probability they will have a son with hemophilia? Use the information from question # 11 for this problem. Two parents produce daughters who are all carriers and sons who are all normal. What are the probable genotypes of the parents? 2 Chapter 13 It's All in the Genes: Understanding Basic Mendelian Genetics

Explanation / Answer

Answer:

11).

XH= normal

Xh= hemophilia

Woman (XH Xh) x Man ( Xh Y)--------parents

a). The probability that they will have child with hemophilia= 50% or 1/2.

b). The probability that they will have son with hemophilia= 25% or 1/4

12).

The genotype of father = Xh Y ( hemophilic)

The genotype of mother= XH XH ( normal)

XH XH ( mother) x ( father) Xh Y-------parents

Xh Y XH XH Xh ( normal female) XH Y ( normal son) Xh Xh Xh ( hemophilic female) Xh Y( hemophilic male)

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