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Reproduction
5 Class 12 Biology questions with answers and explanations.
Printable worksheet with answer key
All questions with answers
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Meiosis in the testis produces:
- 1 Bone cells
- 2 Sperm
- 3 Blood cells
- 4 Skin cells
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Correct answer: Sperm
Spermatogenesis uses meiosis.
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Implantation of the embryo takes place in the:
- 1 Vagina
- 2 Uterus
- 3 Fallopian tube
- 4 Ovary
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Correct answer: Uterus
The embryo embeds in the uterine wall.
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The hormone that maintains pregnancy is:
- 1 Progesterone
- 2 Insulin
- 3 Adrenaline
- 4 Testosterone
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Correct answer: Progesterone
Progesterone keeps the uterine lining.
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In flowering plants, double fertilisation produces a zygote and:
- 1 Endosperm
- 2 A stigma
- 3 A fruit wall only
- 4 Pollen
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Correct answer: Endosperm
One sperm forms the zygote, the other forms endosperm.
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The structure that develops into a fruit is the:
- 1 Style
- 2 Anther
- 3 Ovary
- 4 Sepal
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Correct answer: Ovary
The ovary wall becomes the fruit.
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