1. Which of the following produce sperms?
Answer:
Explanation:
Sperms are produced in the seminiferous tubules located within the testes.
2. What is the other name for Leydig cells?
Answer:
Explanation:
Leydig cells are also known as interstitial cells. They are found in the interstitial tissue of the testes and produce testosterone.
3. External opening of urethra is known as:
Answer:
Explanation:
The external opening of the urethra is known as the urethral meatus.
4. The male reproductive accessory glands include:
Answer:
Explanation:
The male reproductive accessory glands include seminal vesicles, prostate gland, and bulbourethral glands.
5. Which of the following shows diploidity?
Answer:
Explanation:
Spermatogonium is diploid, meaning it contains two complete sets of chromosomes.
6. Which of the following is a male sex accessory duct?
Answer:
Explanation:
All the listed structures are part of the male sex accessory ducts, which help in the transportation and maturation of sperm.
7. Male gametes in humans provide nutrition by:
Answer:
Explanation:
Sertoli cells provide nourishment to the developing sperm cells.
8. What is the function of scrotum?
Answer:
Explanation:
The scrotum houses the testes and maintains them at a temperature lower than the body’s core temperature, which is essential for sperm production.
9. What is the composition of seminal plasma?
Answer:
Explanation:
Seminal plasma, the fluid part of semen, is rich in fructose, calcium, and contains various enzymes.
10. What is the other name for fallopian tube?
Answer:
Explanation:
The fallopian tube is also known as the oviduct. Ampulla and Fimbriae are parts of the fallopian tube, not other names for it.
11. Connective tissue that attaches the ovaries with uterine wall and pelvic wall is:
Answer:
Explanation:
The ovaries are held in place by ligaments which attach them to the uterine wall and pelvic wall.
12. Which of the following exhibits strong contraction during delivery of the baby?
Answer:
Explanation:
The myometrium is the muscle layer of the uterus and is responsible for the strong contractions during childbirth.
13. Hymen is associated with:
Answer:
Explanation:
The hymen is a thin membrane that partially covers the vaginal opening in females.
14. Which of the following is associated with female genital system?
Answer:
Explanation:
The clitoris is a part of the female genital system and is involved in sexual arousal.
15. Sucking of milk out takes place through:
Answer:
Explanation:
Milk is sucked out through the lactiferous ducts which carry milk from the mammary glands to the nipple.
16. Identify gonadal mother cells from the following:
Answer:
Explanation:
Spermatogonia and Oogonia are the gonadal mother cells in males and females respectively.
17. Spermiation is the process of releasing of:
Answer:
Explanation:
Spermiation is the process by which mature sperms are released from the seminiferous tubules.
18. Gonadotropic releasing hormone is secreted from:
Answer:
Explanation:
Gonadotropin-releasing hormone (GnRH) is secreted from the hypothalamus.
19. Hormone that stimulates the leydig cells is:
Answer:
Explanation:
Luteinizing hormone (LH) stimulates Leydig cells to produce testosterone.
20. Mitochondria in a sperm are located in:
Answer:
Explanation:
The middle piece of a sperm contains mitochondria that provide the energy required for motility.
21. Fluid-filled cavity ‘Antrum’ is found in:
Answer:
Explanation:
The antrum is a fluid-filled cavity that is found in the tertiary follicle during oogenesis.
22. Graffian follicle is formed from:
Answer:
Explanation:
The Graffian follicle, also known as the mature follicle, develops from the tertiary follicle during the menstrual cycle.
23. Polar bodies are formed during:
Answer:
Explanation:
Polar bodies are byproducts of oogenesis, formed to maintain the chromosomal number during the formation of a mature ovum.
24. What is common in both sperms and ovum?
Answer:
Explanation:
Both sperms and ovum are haploid, meaning they contain a single set of chromosomes.
25. First meiotic division during oogenesis takes place:
Answer:
Explanation:
The first meiotic division occurs before ovulation, resulting in a secondary oocyte and a first polar body.
26. Appearance of first menstruation at puberty is called:
Answer:
Explanation:
Menarche is the term used to describe the onset of menstruation during puberty in females.
27. Luteal phase during a menstrual cycle is also known as:
Answer:
Explanation:
The luteal phase is also referred to as the secretory phase, during which the uterine lining is prepared for potential implantation.
28. Function of corpus luteum is to secrete:
Answer:
Explanation:
The corpus luteum primarily secretes progesterone, which is crucial for maintaining the uterine lining for a possible pregnancy.
29. Cessation of menstrual cycle is termed as:
Answer:
Explanation:
Menopause is the term used to describe the cessation of the menstrual cycle, marking the end of a woman’s reproductive years.
30. Whether human females are:
Answer:
Explanation:
Human females are homogametic as they have two X chromosomes (XX).
31. The cells of morula are known as:
Answer:
Explanation:
The morula consists of cells known as blastomeres, which are formed through the process of cleavage following fertilization.
32. Corona radiata lies:
Answer:
Explanation:
The corona radiata is an outer layer of cells that surrounds the oocyte and lies external to the zona pellucida.
33. Which part of the blastocyst attaches with the surface of endometrium?
Answer:
Explanation:
The trophoblast is the outer layer of the blastocyst, which plays a crucial role in implantation by attaching to the surface of the endometrium.
34. The technique of preserving pollen grains is by:
Answer:
Explanation:
Cryopreservation is the method used for preserving pollen grains by cooling them to sub-zero temperatures, which halts all biological activity and preserves their viability.
35. Which among the following is not a False fruit?
Answer:
Explanation:
Among the listed options, banana is considered a true fruit as it develops from the ovary of a flower, whereas the others are false fruits, developing from other parts of the flower or plant.
36. A genetic mechanism to prevent self pollen from the same flower or other flowers of the same plant is by which of the following out breeding devices in plants:
Answer:
Explanation:
Self-incompatibility is a genetic mechanism that prevents self-pollination from occurring within the same flower or between flowers of the same plant, promoting cross-pollination instead.
37. An example for a non albuminous seed is:
Answer:
Explanation:
Non-albuminous seeds do not retain or possess endosperm at maturity as it is completely used up during seed development. Ground nut is an example of a non-albuminous seed.
38. Production of seeds without fertilization is called as:
Answer:
Explanation:
Apomixis is the process of seed production without fertilization, leading to the formation of genetically identical offspring from the parent plant.