NEET 2026
- Exam
- NEET
- Year
- 2026
- Subject
- Biology
- Chapter
- Chapter
NEET 2026 · Biology · Chapter
Which of the given features are characteristic of oogenesis but are...
Which of the given features are characteristic of oogenesis but are absent in the process of spermatogenesis?
(a) No more gamete mother cells are formed and added after birth
(b) The meiotic division is temporarily arrested at the prophase-I stage
(c) A single primary gametocyte yields four functional haploid gametes
(d) The first meiotic division is unequal, producing a large haploid cell and a tiny polar body
(e) The process is regulated by the secretion of gonadotropins from the anterior pituitary
Choose the correct answer from the options given below:
Options
- A(a), (b) and (d) only
- B(b), (c) and (d) only
- C(a), (d) and (e) only
- D(b), (d) and (e) only
Correct answer
A. (a), (b) and (d) only
Step-by-step solution
Statement (a) is a characteristic of oogenesis because oogonia are formed only during embryonic development and no more are added after birth, whereas in spermatogenesis, spermatogonia continue to multiply after puberty.
Statement (b) is a characteristic of oogenesis because primary oocytes are arrested at the prophase-I stage of meiosis until puberty, whereas spermatogenesis is a continuous process without such arrest.
Statement (c) is incorrect for oogenesis because a single primary oocyte yields only one functional ovum and polar bodies, whereas a primary spermatocyte yields four functional spermatozoa.
Statement (d) is a characteristic of oogenesis because the first meiotic division is unequal, producing a large secondary oocyte and a tiny first polar body, whereas in spermatogenesis, the division is equal.
Statement (e) is incorrect as a distinguishing feature because both oogenesis and spermatogenesis are regulated by gonadotropins (LH and FSH) secreted from the anterior pituitary.
Therefore, features (a), (b), and (d) are characteristic of oogenesis but absent in spermatogenesis.
Answer: (a), (b) and (d) only
Statement (b) is a characteristic of oogenesis because primary oocytes are arrested at the prophase-I stage of meiosis until puberty, whereas spermatogenesis is a continuous process without such arrest.
Statement (c) is incorrect for oogenesis because a single primary oocyte yields only one functional ovum and polar bodies, whereas a primary spermatocyte yields four functional spermatozoa.
Statement (d) is a characteristic of oogenesis because the first meiotic division is unequal, producing a large secondary oocyte and a tiny first polar body, whereas in spermatogenesis, the division is equal.
Statement (e) is incorrect as a distinguishing feature because both oogenesis and spermatogenesis are regulated by gonadotropins (LH and FSH) secreted from the anterior pituitary.
Therefore, features (a), (b), and (d) are characteristic of oogenesis but absent in spermatogenesis.
Answer: (a), (b) and (d) only