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mart [117]
3 years ago
5

How many sex chromosomes are in a human gamete cell before fertilization

Biology
2 answers:
daser333 [38]3 years ago
6 0

Answer: 23

Explanation: One pair of the 23 chromosomes, known as sex chromosomes, determines at conception whether a fertilized egg will develop into a male or female. Today, human females have one pair of identical X chromosomes.

Alex787 [66]3 years ago
5 0

Answer:

23

Explanation:

If the sperm carries a Y chromosome, it will result in a male. During fertilization, gametes from the sperm combine with gametes from the egg to form a zygote. The zygote contains two sets of 23 chromosomes, for the required 46. Most women are 46XX and most men are 46XY, according to the World Health Organization.

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Troyanec [42]
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