Both. You can use it as singular or plural.
Answer:
Genetic variation that alter gene activity or protein function can introduce different traits in an organism. If trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation (a process known as natural selection).
Non-disjunction occurred during meiosis II in the maternal germinal line. Non-disjunction may occur during meiosis I or meiosis II.
<h3>What is non-disjunction?</h3>
Non-disjunction refers to the phenomena where homo-logous chromosomes or sister chromatids are not separated properly during cell division.
Non-disjunction during meiosis II is due to the failure of the sister chromatids to separate during Anaphase II.
In this case, the genotype of the father is 5/8, thereby transmitting alleles number 5 and 8.
Moreover, the genotype of the mother is 6/3, thereby she is able to transmit alleles number 6 and 3.
Learn more about non-disjunction here:
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