Q.A man who is a carrier for Thalassemia ( $Aa$ ) marries a woman who is also a carrier ( $Aa$ ). They already have one child with Thalassemia major ( $aa$ ). What is the probability that their SECOND child will also have Thalassemia major?

0\%

25\%

50\%

75\%

The correct solution involves applying the fundamental concept to derive the final value step by step...

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Q.A man who is a carrier for Thalassemia (AaAaAa) marries a woman who is also a carrier (AaAaAa). They already have one child with Thalassemia major (aaaaaa). What is the probability that their SECOND child will also have Thalassemia major?