Question

The structures present in a cell which is responsible for determination of the sex of a baby is a

• A. Cytoplasm
• B. Cell membrane
• C. Nucleus
• D. Chromosome

Answer 1

The correct option is D

Chromosome

The correct option is D.

Explanation for correct answer:

1. Human beings have two types of chromosomes - autosomes and sex chromosomes.
2. The sex chromosomes in males are XY while in females it is XX.
3. Offspring that inherit two X chromosomes develop into females, while those that inherit one X and one Y chromosome develop into males.

Explanation for incorrect answer:

Option A:

1. The cytoplasm is a thick viscous solution that fills the cells and is enclosed by the cell membrane.
2. It is composed of water, salts, and proteins. It functions as a platform for the other organelles to operate.

Option B:

1. A cell membrane is a thin membrane that surrounds all living cells and contains the constituents of the cell.
2. They are composed of proteins and fatty lipids such as phospholipids and sterols.

Option C:

1. The nucleus is a double membrane-bound organelle that carries the chromosomes of the cell.
2. It regulates almost all cellular activities and carries hereditary information.

Final answer: The structure present in a cell that is responsible for the determination of the sex of a baby is a chromosome.