Nondisjunction of the ______ chromosome during meiosis can produce offspring that are XXX or XXY.Multiple choice question.

Breakdown of the Problem

To answer the multiple-choice question regarding nondisjunction during meiosis, we need to identify which chromosomes can result in the mentioned offspring conditions (XXX or XXY).

Relevant Concepts

1. Nondisjunction refers to the failure of chromosomes to separate properly during cell division.
2. The conditions of interest:
   • XXX: This indicates an extra X chromosome, leading to a female with three X chromosomes (Turner syndrome).
   • XXY: This indicates an extra X chromosome in a male (Klinefelter syndrome).

Analysis and Detail

1. XXX: This arises when there is an additional X chromosome. It typically results from nondisjunction of the X chromosomes during maternal meiosis I or II.

2. XXY: This typically occurs when there is an extra X chromosome paired with a Y chromosome. This results from nondisjunction occurring in males or females, usually leading to Klinefelter syndrome due to an extra X chromosome.

Verify and Summarize

Since both offspring conditions involve the X chromosome, we can conclude that nondisjunction of the X chromosome is responsible for producing offspring that are XXX or XXY.

Final Answer

Nondisjunction of the X chromosome during meiosis can produce offspring that are XXX or XXY.