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Give scientific reason.
There is a menopause when women are 45-50 years old.
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Explain two main process in sexual reproduction.
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If newborns are produced at the age of menopause, they may be with some abnormalities. Why?
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Define.
Fertilization
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Which parts are converted into Seed and fruit respectively after fertilization?
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How can plants and animals save themselves from extinction?
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Give scientific reason.
The new individual produced by sexual reproduction always has the recombined genes of both the parents.
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Explain the process of fertilization.
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What would be the effect if meiosis did not occur in nature?
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State whether True or False:
The chromosome number in germ cells producing the gametes are diploid.
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In which part of the human female reproductive system do the following events take place?
Fertilization
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What are autosomes chromosomes?
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What is sex chromosomes?
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Match the pair:
| 'A' | 'B' | ||
| (1) | Male | (a) | 44 + XX |
| (b) | 44 + XY | ||
| (c) | 44 + YY |
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