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The sex of a male child is determined by which of the following? |
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(a) |
The length of the mother’s pregnancy |
(b) |
The length of time between ovulation and copulation |
|
(c) |
The presence of an X chromosome |
(d) |
The presence of a Y chromosome |
|
The sex of a male child is determined by which of the following? |
|||
|
(a) |
The length of the mother’s pregnancy |
(b) |
The length of time between ovulation and copulation |
|
(c) |
The presence of an X chromosome |
(d) |
The presence of a Y chromosome |