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Question
The number of pair(s) of sex chromosomes in the zygote of humans is ______.
Options
one
two
three
four
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Solution
The number of pairs of sex chromosomes in the zygote of humans is one.
Explanation:
A human zygote contains 46 chromosomes arranged in 23 pairs. Out of these:
- 22 pairs are autosomes.
- 1 pair is the sex chromosomes (XX in females or XY in males).
RELATED QUESTIONS
Explain sex determination in human beings.
Differentiate between male and female heterogamety.
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Explain the mechanism of sex determination in humans with a suitable chart.
Distinguish between heterogametic and homogametic sex determination systems.
Identify the female heterogamety from the chromosomal complements given below.
The sex chromosome in a human ovum is ______.
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