Question

A woman has an extra X chromosome. Explain how this happened using what you have learned in this lesson. Describe the error in gamete formation, identify the stage of meiosis where the error could occur, and explain the consequences of the error in meiosis​

Answer 1

Answer:

can occur during meiosis I or meiosis II, in meiosis I homologous chromosomes fail to separate or in meiosis II the sister chromatids fail to separate

Explanation:

Answer 2

Answer:

Meiosis is the formation of gametes

One error in meiosis is nondisjunction.

Nondisjunction results in an abnormal number of chromosomes.

Nondisjunction in meiosis I result in 50% of gametes with an extra chromosome.

Explanation: