A male who has normal blood clotting would be shown as

[From: ] [author: ] [Date: 12-03-10] [Hit: ]

So,option C.While for female,it can be either HH or Hh. So, either the 2nd question has 2 correct answers (Option A and B),......

a. HH
b. hY
c. HY
d. hh

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Exactly as mentioned by Rolland,
Male is HY for normal blood clotting. So,option C.

While for female,it can be either HH or Hh. So, either the 2nd question has 2 correct answers (Option A and B), or you have written Option C wrong.
Option C- HH or Hh

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answer is C

The blood-clotting gene is on the X-chromosome,and a male has only 1 of them (its "mate" being a Y-chromosome).

The normal gene is dominant, so it is H. Therefore HY is the genotype of a normal male.

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