+20 Questions on Gametogenesis
20 multiple-choice questions (each with five alternatives) on the topic of Gametogenesis, numbered and followed by the answer key at the end.
Multiple-Choice Questions: Gametogenesis
1. What is gametogenesis?
A) The fusion of sperm and egg
B) The formation of somatic cells
C) The process of forming gametes
D) The duplication of DNA
E) The division of zygotes
2. Which two processes make up gametogenesis?
A) Fertilization and cleavage
B) Meiosis and mitosis
C) Spermatogenesis and oogenesis
D) Ovulation and implantation
E) DNA replication and mutation
3. Where does spermatogenesis occur in males?
A) Epididymis
B) Vas deferens
C) Seminal vesicle
D) Seminiferous tubules
E) Prostate gland
4. Where does oogenesis occur in females?
A) Fallopian tube
B) Uterus
C) Ovary
D) Cervix
E) Placenta
5. What type of cell division occurs during gametogenesis?
A) Mitosis only
B) Meiosis only
C) Binary fission
D) Budding
E) Fragmentation
6. What is the end result of spermatogenesis?
A) Two diploid sperm cells
B) Four diploid sperm cells
C) Four haploid sperm cells
D) One haploid sperm cell
E) Four zygotes
7. What is the end result of oogenesis?
A) Four haploid eggs
B) Two diploid eggs
C) One haploid egg and three polar bodies
D) One diploid egg
E) Four polar bodies
8. What are polar bodies?
A) Fully functional gametes
B) Hormones involved in ovulation
C) Small cells produced during oogenesis that usually degenerate
D) Extra chromosomes
E) Precursor sperm cells
9. Which hormone primarily regulates spermatogenesis?
A) Estrogen
B) Progesterone
C) Testosterone
D) Oxytocin
E) Insulin
10. Which hormone primarily regulates oogenesis?
A) Testosterone
B) Follicle-stimulating hormone (FSH)
C) Melatonin
D) Antidiuretic hormone
E) Insulin
11. At what stage does oogenesis begin in females?
A) At birth
B) During puberty
C) During ovulation
D) After fertilization
E) During menopause
12. When is oogenesis completed?
A) At birth
B) At ovulation
C) After puberty
D) Upon fertilization
E) After menstruation
13. What is a primary spermatocyte?
A) A mature sperm cell
B) A sperm stem cell
C) A cell that undergoes meiosis I
D) A cell that forms polar bodies
E) A diploid egg cell
14. What is a secondary oocyte?
A) A fully developed egg
B) A cell arrested in metaphase II
C) A sperm precursor
D) A polar body
E) A fertilized zygote
15. What is the chromosome number of human gametes?
A) 23
B) 46
C) 44
D) 92
E) 22
16. How many functional gametes are formed from one primary spermatocyte?
A) 1
B) 2
C) 3
D) 4
E) 0
17. How many functional gametes are formed from one primary oocyte?
A) 1
B) 2
C) 3
D) 4
E) 0
18. What is the ploidy of a mature sperm or egg?
A) Diploid
B) Triploid
C) Tetraploid
D) Haploid
E) Polyploid
19. Which phase of meiosis is arrested in primary oocytes until puberty?
A) Anaphase I
B) Metaphase II
C) Prophase I
D) Telophase I
E) Cytokinesis
20. What triggers the resumption of meiosis in a secondary oocyte?
A) Ovulation
B) Menstruation
C) Fertilization
D) Hormone therapy
E) Menopause
Answer Key
1. C
2. C
3. D
4. C
5. B
6. C
7. C
8. C
9. C
10. B
11. A
12. D
13. C
14. B
15. A
16. D
17. A
18. D
19. C
20. C
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