Principle of Inheritance and VariationHard
Question
A man and a women who both appear normal have a child together, who has sickle cell anaemia. Sickle cell anaemia is an autosomal recessive trait. The woman becomes pregnant again and is told that she is carrying fraternal twins. What is the probability that both of the couple’s twins will develop sickle cell anaemia
Options
A.1/16
B.1/4
C.1/2
D.9/16
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