Question

1. Elaborate the determination of the sex of a human body.
2. How does plant cell differ from animal cell ? Give 3 points.
3. How is zygote formed.​

Answer 1

1. Human sex is determined by the presence or absence of a Y chromosome with a functional SRY gene. Once the SRY gene is activated, cells create testosterone and anti-müllerian hormone which typically ensures the development of a single, male reproductive system.
2. Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not. ... Plant cells usually have one or more large vacuole(s), while animal cells have smaller vacuoles, if any are present.
3. A zygote is a fertilized egg. It's created when sperm meets an egg in one of the fallopian tubes. When the sperm enters the egg, you conceive and the result is the zygote. ... Half of that comes from the egg, and the other half comes from the sperm.

Answer 2

Answer:

Human sex is determined by the presence or absence of a Y chromosome with a functional SRY gene. Once the SRY gene is activated, cells create testosterone and anti-müllerian hormone which typically ensures the development of a single, male reproductive system.

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