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    science
    Grade-11
    Easy

    Question

    How do genetic disorders happen?

    1. Mutations
    2. Mistakes during meiosis
    3. Both A and B
    4. They are transmitted

    Hint:

    Genetic material undergoes change during cell division.

    The correct answer is: Both A and B

      Cells division is necessary for the growth of an organism. Cell division results in the passage of genetic material from the parent cell to offspring.
      Cell division can be classified into mitosis and meiosis. Mitosis is the division of somatic cells resulting in two identical cells. Meiosis is the division of sex cells resulting in the production of gametes.
      In both mitosis and meiosis, genetic material is being transferred. Error in genetic sequence can occur irrespective of the process. Genetic disorder can occur in both somatic and sex chromosomes.

      • Genetic disorder is due to alteration in gene sequence
      • The gene sequence change can occur in a cell irrespective of type of cell division a cell undergoes
      • Mutation can occur at any point of cell division
      • Trisomy can be attributed as a result of meiosis

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