How many chromosomes are present in a normal human cell?

• A. 23
• B. 46
• C. 44
• D. 48

Answer: (B)

A normal human cell contains 46 chromosomes, which are organized into 23 pairs. This number is significant as it comprises both the autosomal chromosomes and the sex chromosomes. Each parent contributes one chromosome to each pair, resulting in the total count of 46. This diploid number is essential for maintaining genetic stability and proper function during cellular division.

The presence of these 46 chromosomes ensures that each cell has a complete set of genetic information necessary for growth, development, and functioning of the organism. This balanced chromosome count is crucial for processes like mitosis and meiosis, ensuring the correct distribution of genetic material to daughter cells.