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12th Standard English Medium Biology (Botany) Subject Classical Genetics Book Back 1 Mark Questions with Solution Part - I

12th Standard

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Biology

Time : 01:00:00 Hrs
Total Marks : 5

    1 Marks

    5 x 1 = 5
  1. Extra nuclear inheritance is a consequence of presence of genes in _____.

    (a)

    Mitrochondria and chloroplasts

    (b)

    Endoplasmic reticulum and mitrochondria

    (c)

    Ribosomes and chloroplast

    (d)

    Lysososmes and ribosomes

  2. In order to find out the different types of gametes produced by a pea plant having the genotype AaBb, it should be crossed to a plant with the genotype _____.

    (a)

    aaBB

    (b)

    AaBB

    (c)

    AABB

    (d)

    aabb

  3. How many different kinds of gametes will be produced by a plant having the genotype AABbCC?

    (a)

    Three

    (b)

    Four

    (c)

    Nine

    (d)

    Two

  4. Which one of the following is an example of polygenic inheritance?

    (a)

    Flower colour in Mirabilis Jalapa

    (b)

    Production of male honey bee

    (c)

    Pod shape in garden pea

    (d)

    Skin Colour in humans

  5. In Mendel’s experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F2 generation of the cross RRYY x rryy?

    (a)

    Only round seeds with green cotyledons

    (b)

    Only wrinkled seeds with yellow cotyledons

    (c)

    Only wrinkled seeds with green cotyledons

    (d)

    Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledons

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