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Inheritance

6 Class 10 Biology questions with answers and explanations.

Printable worksheet with answer key

All questions with answers

  1. The father of genetics is:

    • 1 Darwin
    • 2 Pasteur
    • 3 Hooke
    • 4 Mendel
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    Correct answer: Mendel

    Gregor Mendel worked on pea plants and described inheritance.

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  2. Different forms of the same gene are called:

    • 1 Alleles
    • 2 Chromosomes
    • 3 Genomes
    • 4 Traits
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    Correct answer: Alleles

    Alleles are alternative forms of a gene.

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  3. In a cross between two heterozygous tall plants (Tt x Tt), the fraction of tall offspring is:

    • 1 1/2
    • 2 1/4
    • 3 3/4
    • 4 All
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    Correct answer: 3/4

    The ratio is 3 tall : 1 short, so 3/4 are tall.

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  4. The genetic makeup of an organism is its:

    • 1 Species
    • 2 Genotype
    • 3 Habitat
    • 4 Phenotype
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    Correct answer: Genotype

    The genotype is the set of alleles it carries.

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  5. DNA stands for:

    • 1 Dioxyribonucleic acid
    • 2 Double nucleic acid
    • 3 Deoxyribonucleic acid
    • 4 Deoxyribose nitrogen acid
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    Correct answer: Deoxyribonucleic acid

    DNA is deoxyribonucleic acid.

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  6. Humans have how many pairs of chromosomes?

    • 1 48
    • 2 22
    • 3 23
    • 4 46
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    Correct answer: 23

    There are 23 pairs, 46 chromosomes in total.

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