Gametogenesis - Spermatogenesis and Oogenesis - Unsolved Practice Set
Chapter: Human Reproduction | Topic: Gametogenesis Spermatogenesis and Oogenesis
GAMETOGENESIS - SPERMATOGENESIS AND OOGENESIS - UNSOLVED PRACTICE SET
Topic: Gametogenesis Spermatogenesis and Oogenesis
Multiple Choice Questions
Q1. Spermatogenesis begins at:
- Birth
- Puberty
- Old age
- Before birth
Q2. The hormone mainly responsible for stimulating spermatogenesis by acting on Sertoli cells is:
- LH
- FSH
- Estrogen
- Progesterone
Q3. In oogenesis, the primary oocyte remains arrested at which stage until puberty?
- Metaphase
- Prophase
- Metaphase II
- Anaphase I
Q4. The cap-like structure covering the sperm head, containing enzymes that help it penetrate the ovum, is called the:
- Acrosome
- Centriole
- Mitochondrial sheath
- Nucleus
Q5. In oogenesis, meiosis II of the secondary oocyte is completed only:
- At birth
- At puberty
- After fertilisation
- During ovulation
Short Answer Questions
Q6. What is spermiogenesis, and what does it result in?
Q7. Why does human oogenesis result in only one functional ovum, while spermatogenesis results in four functional sperm from a single primary spermatocyte?
Q8. Name the hormone(s) that regulate spermatogenesis, and mention the gland from which they are released.
Q9. What is a polar body, and what is its eventual fate?
Long Answer Questions
Q10. Describe the process of spermatogenesis, from spermatogonia to the formation of mature spermatozoa, mentioning the role of meiosis at each stage.
Q11. Explain the process of oogenesis, highlighting why it begins before a girl is even born but is completed only after fertilisation.
APPLICATION / ANALYSIS
Q12. A fertility specialist explains to a couple that the woman was born with all the primary oocytes she will ever have, while the man continues producing new sperm throughout his reproductive life. Using your understanding of gametogenesis, explain the biological basis for this difference.
Q13. A student learns that from one primary oocyte, only one functional egg is produced, while a similar amount of cytoplasm in spermatogenesis gets distributed among four sperm. Explain the biological reason behind this unequal division of cytoplasm in oogenesis.