Lectures

Nondisjunction

by Georgina Cornwall, PhD
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    About the Lecture

    The lecture Nondisjunction by Georgina Cornwall, PhD is from the course Chromosomal Disorders.


    Included Quiz Questions

    1. Subacrocentric
    2. Submetacentric
    3. Metacentric
    4. Acrocentric
    5. Telocentric
    1. Slightly offset from the center of the chromosome
    2. Exactly in the middle of the chromosome
    3. Severely offset from the center of the chromosome
    4. At the very end of the chromosome
    5. Throughout the entire length of the chromosome
    1. Spontaneous abortion
    2. Birth of live normal baby
    3. Birth of live deformed baby
    4. Stillborn baby
    5. Birth of low weight baby
    1. Homologous chromosomes fail to separate properly during meiosis I.
    2. Homologous chromosomes fail to separate properly during meiosis II.
    3. Sister chromatids fail to separate properly during meiosis I.
    4. Homologous chromosomes fail to separate properly during mitosis.
    5. Sister chromatids fail to separate properly during mitosis.
    1. A female has all her oocytes stalled in meiosis I at birth and has a limited supply throughout her life.
    2. Females are weaker than males, and hence, the oocytes are more prone to non-disjunction than sperms.
    3. Oocytes are larger than sperms, making them more susceptible to environmental damage.
    4. Oocytes are formed rapidly, leading to more chances of error during formation.
    5. Only one oocyte gets a chance to ovulate each month, while many sperms are produced regularly.

    Author of lecture Nondisjunction

     Georgina Cornwall, PhD

    Georgina Cornwall, PhD


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