Question

There is no cell division involved in

• A. Spermatogenesis
• B. Oogenesis
• C. Embryogenesis
• D. Spermiogenesis

Answer 1

The correct option is D

Spermiogenesis

The correct option is D.

Explanation of the correct option:

1. It is the process of the development of spermatids into mature spermatozoa.
2. Mature spermatozoa are formed only after the spermatids have undergone cell division.
3. So, cell division takes place in this stage.

Explanation of the incorrect options:

Option A:

1. Spermatogenesis is the development of sperms In the testis.
2. Here, haploid spermatozoa undergo mitotic division to produce more sperms
3. Hence, cell division takes place here.

Option B:

1. In oogenesis, the ovum grows into a mature ova which is also called primary ova.
2. These ova remain in the dormant stage until an egg is released from the ovary.
3. Since there is only growth taking place, there is no cell division here.

Option C:

1. It is the process in which an embryo starts developing into an embryo from a zygote (2n).
2. The sequence of cell division takes place (1-celled stage, 2- celled stage, 4 cell stage, 8 cell stage, 16 cell stage, 32 cell stage) before it turns into an embryo.

Final answer: There is no cell division involved in spermiogenesis.