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Reproduction

Written by Dr. Hira Salman (Biology)

8 Class 12 Biology questions with answers and explanations.

Printable worksheet with answer key

All questions with answers
  1. 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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  2. 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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  3. 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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  4. 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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  5. 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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  6. The male gametophyte of a flowering plant is the:

    • 1 Pollen grain
    • 2 Embryo sac
    • 3 Ovule
    • 4 Seed
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    Correct answer: Pollen grain

    Pollen grains carry the male gametes.

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  7. Sperm are stored in the:

    • 1 Urethra
    • 2 Prostate
    • 3 Scrotum only
    • 4 Epididymis
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    Correct answer: Epididymis

    The epididymis stores and matures sperm.

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  8. The placenta allows exchange of materials between:

    • 1 Mother and father
    • 2 Egg and sperm
    • 3 Mother and foetus
    • 4 Foetus and uterus wall only
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    Correct answer: Mother and foetus

    Nutrients and oxygen pass to the foetus.

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