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Which condition of zygote cell will lead to birth of a normal human female child

1. one X-chromosome
2. one \( x \) and one \( Y \) chromosome
3. two X-chromosomes
4. one Y-chromosome

Correct answer: two X-chromosomes

Solution

In humans, females typically have two X chromosomes (XX), while males typically have one X and one Y (XY). A zygote with two X chromosomes develops as a normal human female child.

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