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    science
    Grade-10
    Easy

    Question

    There are _____ chromosomes in human beings.

    1. 23 pairs
    2. 44 pairs
    3. 22 pairs
    4. 46 pairs

    hintHint:

    46 pairs of chromosomes are split after mitosis.

    The correct answer is: 23 pairs

      • The DNA or deoxyribonucleic acid is the genetic material for the living organisms except few viruses
      • The DNA contains the units of heredity called genes
      • The DNA is coiled into structures called as chromosomes
      • Each species has a specific number of chromosomes
      • The number of chromosomes in humans (Homo sapiens) is 23 pairs
      • The chromosomes always occur in pairs

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