Question

Describe nondisjunction and the effect it can have on a human. Describe nondisjunction and the effect it can have on a human.

Answer 1

It is the failure of homologous chromosomes to separate properly during gamete formation (meiosis).

Klinefelter syndrome can occur and is seen as males with gametes XXY instead of XY.

It affects sex organs, including creating smaller testes and causing sterility.

Males can be taller in stature with normal intelligence.

Step-by-step explanation:

Answer 2

Non-disjunction leads to presence of abnormal chromosomes in an individual thereby causing genetic diseases like down syndrome

Step-by-step explanation:

Nondisjunction can cause non separation of chromosomes at the time of cell division thereby resulting of abnormal chromosomes in an individual. These abnormal chromosome number could lead to various genetic disorder such as Down syndrome or trisomy 21 in which an individual has 47 chromosome instead 46