SATHEE: Body Fluids and Circulation Question 36

Body Fluids and Circulation Question 36

36. A man with blood group A marries AB blood group woman. Which type of progeny indicate that the man is not homozygous?

[1993]

(a) $A B$

(b) $B$

(d) $O$

Show Answer

Answer : b

Hints & Solutions

$\begin{aligned} Man (A) : I^{A} I^{0} & \to I^{A} I^{A} \to A \\ \to I^{A} I^{B} \to AB \\ Woman (AB) : I^{A} I^{B} & \to I^{A} I^{O} \to AB \\ \to I^{B} I^{O} \to B \end{aligned}] all show heterozygous$

$\begin{aligned} I^{A} I^{A} & \to I^{A} I^{A} \to A \\ \to I^{A} I^{B} \to AB \\ I^{A} I^{B} & \to I^{A} I^{A} \to A \\ \to I^{A} I^{B} \to AB \end{aligned}] all show homozygous$

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Body Fluids and Circulation Question 36

36. A man with blood group A marries AB blood group woman. Which type of progeny indicate that the man is not homozygous?

Answer : b

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