Question

A cell has two threadlike linear strands of DNA in its nucleus, each called a chromosome. Each cell will have two copies of each chromosome;

• A. one each from the male and female parents.
• B. both from the male parent.
• C. both from the female parent.
• D. both different from those of the parents.

Answer 1

The correct option is A

one each from the male and female parents.

The correct option is A

Explanation of the correct option :

1. Deoxyribonucleic acid (DNA) is the information-carrying molecule found in all living organisms.
2. In most animal, plant, and fungal cells, DNA is stored in the nucleus coiled up in thread-like structures called chromosomes.
3. The pair of sex chromosomes determine whether a fetus becomes male or female.
4. Males have one X and one Y chromosome. A male’s X comes from his mother, and the Y comes from his father.
5. Females have two X chromosomes, one from the mother and one from the father.

Explanation of the incorrect option :

Option B:

The chromosome is made up of one female gamete and one male gamete.

Option C:

The chromosome is made up of one female gamete and one male gamete.

Option D:

The chromosome is made up of one female gamete and one male gamete.

Final answer: A cell has two threadlike linear strands of DNA in its nucleus, each called a chromosome. Each cell will have two copies of each chromosome, one each from the male and female parents.