Question

9. In earthworms n=18. How many chromosomes would you expect to find in a sperm cell? In a nerve cell? In a skin cell? In an egg cell?

Answer 1

9 chromosomes

36 chromosomes

36 chromosomes

18 chromosomes

Step-by-step explanation:

In earthworms, the haploid number of chromosomes (n) is 18. Therefore:

- In a sperm cell, you would expect to find 9 chromosomes (since sperm are haploid and have half the number of chromosomes as compared to the parent cell).

- In a nerve cell, you would expect to find the diploid number of chromosomes, which is 36 (since nerve cells are somatic cells and have the same number of chromosomes as the parent cell).

- In a skin cell, you would expect to find 36 chromosomes (since skin cells are also somatic cells and have the same number of chromosomes as the parent cell).

- In an egg cell, you would also expect to find 18 chromosomes (since egg cells are haploid like the parent cell).