Question

pats 23rd pair of chromosomes is xy. pat is biologically a

multiple choice

female.

carrier of down syndrome.

male.

carrier for fragile x syndrome.

Explanation:

Identify the biological sex chromosomes

Using the Sex and Gender knowledge point

In humans, the 23rd pair of chromosomes determines biological sex. An XX combination typically results in a biological female, while an XY combination typically results in a biological male.

Determine Pat's biological sex

Using the Sex and Gender knowledge point

Since Pat's 23rd pair of chromosomes is XY, Pat is biologically a male.

Answer:

• female.
• carrier of Down syndrome.
• male. (Correct answer)
• carrier for fragile X syndrome.