Biology
The female gamete/egg cell of a human cell will have:
- 44 + XX chromosomes
- 44 + XY chromosomes
- 22 + X chromosomes
- 22 + Y chromosomes
Chromosomes
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Answer
22 + X chromosomes
Reason — Chromosome number is halved in gametes (sex cells) so the female gamete/egg cell of a human cell will have 22 + X chromosomes.
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The figure given alongside was shown to students of class 10 in the laboratory under a compound microscope. They were told to observe the slide, identify the stage of mitotic cell division and mention the number of chromosomes which would be found in the daughter cells. Which of the following will be the correct response?

- Anaphase, 8 chromosomes
- Metaphase, 8 chromosomes
- Anaphase, 4 chromosomes
- Telophase, 4 chromosomes
Assertion. Both centromere and centrosome are parts of chromosome.
Reason. The centromere is the region where spindle fibres attach, while the centrosome helps in the formation of spindle fibres.
- Both A and R are True.
- Both A and R are False.
- A is True and R is False.
- A is False and R is True.