Which of the statements are true of both first - and second-division nondisjunction? Select all that apply. Sister chromatids fail to separate. Half of the gametes produced are wild-type, whereas half are mutated. Gametes are produced with extra chromosomes. Homologous chromosomes fail to separate. Gametes are produced with missing chromosomes.

Question

Biology

Jean Berry

8 February, 03:07

Which of the statements are true of both first - and second-division nondisjunction? Select all that apply. Sister chromatids fail to separate. Half of the gametes produced are wild-type, whereas half are mutated. Gametes are produced with extra chromosomes. Homologous chromosomes fail to separate. Gametes are produced with missing chromosomes.

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Answers (2)

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Izabella Deleon · Answer 1

Gametes are produced with extra chromosomes.

Gametes are produced with missing chromosomes.

Explanation:

The nondisjunction in the first - and second-division will produce gametes with extra chromosomes and extra chromatids, respectively, it since chromosomes are separated during meiosis 1, while chromatids are separated during meiosis 2.

Maia Hanna · Answer 2

Gametes are produced with extra chromosomes. Gametes are produced with missing chromosomes.

Explanation:

Non-disjunction is a genetic phenomenon that results in a failure in the segregation of sister chromatids. Non-disjunction can be classified as first or second division, however both result in genetic anomalies, because both cause excessive gamete production, or failure in gamete production, in addition to causing cells to be created with fewer chromosomes than they should It has.

For this reason, we can consider that the correct answer to your question is:

Gametes are produced with extra chromosomes. Gametes are produced with missing chromosomes.