Question

The sex of a person is determined by ?

• A. the chromosomes present in sperm
• B. the chromosomes present in both sperm and ovum and dietary habits of parents
• C. the chromosomes present in ovum
• D. the chromosomes present in both sperm and ovum

Answer 1

Answer:

A. the chromosomes present in sperm

• The sex of a person is determined by the chromosomes present in the sperm, specifically whether it carries an X or Y chromosome, as the ovum always carries an X chromosome.

• Female Chromosomes: Females have two X chromosomes (XX).

• Therefore, every egg cell (ovum) produced by a female will contain a single X chromosome.

• Male Chromosomes: Males have one X chromosome and one Y chromosome (XY).

• During sperm production, the chromosome pairs separate, so each sperm cell will carry either an X chromosome or a Y chromosome.