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.

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.

luisvaschetto luisvaschetto · Answer 2 · 2022-01-07T11:50:24+01:00

The statements "gametes are produced with extra chromosomes" and "gametes are produced with missing chromosomes" are TRUE.

Meiosis is a cell division by which a parent cell divides twice and duplicates its genetic material to produce four daughter cells (gametes) having half of the genetic material.

These successive rounds of cell division are called Meiosis I and Meiosis II.

Non-disjunction refers to either the faulty separation of either homo-logous chromosomes or sister chromatids during Meiosis I or Meiosis II.

In conclusion, the statements "gametes are produced with extra chromosomes" and "gametes are produced with missing chromosomes" are TRUE.

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