Question

Female parent with blood group A and male parent with blood group O. The blood group of progeny will be .
a)A b)O. c)A or O. d)AB​

Answer 1

Answer:

A is the answer

Explanation:

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Answer 2

The blood group of progeny will be c) A or O.

• For the blood group O, the genotype will be $I^{O} I^{O}$. So, the male parent will have genotype $I^{A}I^{O}$
• The female parent is having blood group A.
• Now, there are two genotype possibilities for the expression of blood group A.
• The alleles for blood group A can be $I^{A} I^{O}$ or $I^{A} I^{A}$
• Let us make the Punnett cross for both possibilities.

Punnett square for $I^{O} I^{O}$×  $I^{A} I^{O}$:

                                $I^{O}$               $I^{O}$

$I^{A}$          $I^{A}I^{O}$         $I^{A}I^{O}$

$I^{O}$          $I^{O}I^{O}$         $I^{O}I^{O}$

From the above, we can see that the progeny can have blood group A or O.

Punnett square for$I^{O} I^{O}$× $I^{A} I^{A}$:

          $I^{O}$                  $I^{O}$

$I^{A}$      $I^{A} I^{O}$               $I^{A}I^{O}$

$I^{A}$      $I^{A} I^{O}$               $I^{A}I^{O}$

From the above, we can see that all the progeny will have blood group A.

Thus, it is clear that a female parent with blood group A and a male parent with blood group O will have progeny with Blood Group A or O.