286417
If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from
1 testes to epididymis
2 epididymis to vas deferens
3 ovary to uterus
4 vagina to uterus
Explanation:
(a)
NCERT Page-43 / N-27
Human Reproduction(NCERT)
286418
Which of the following is true regarding the male reproductive system?
1 Sperms are diploid.
2 It includes testes, accessory ducts and glands, and oviducts.
3 The scrotum keeps the testes warmer, thus helping it to promote the sperm formation.
4 Sertoli cells are found in seminiferous tubules and provide nutrition to germ cells.
Explanation:
(d) Sperm are haploid male gametes. Oviducts are a part of female reproductive system. Scrotum maintains testes at lower (2-2.5 degrees) than normal body temperature. Sertoli cells certainly nourish the developing male germ cells.
NCERT Page-43 / N-27
Human Reproduction(NCERT)
286419
Which of the following pair is incorrectly matched?
1 Leydig cells - Androgen.
2 Spermatogenesis - Seminiferous tubules
3 Male reproductive system - Pelvis region
4 Spermatocytes - Mitotic division
Explanation:
(d) A spermatogonium divides into two primary spermatocytes. Each primary spermatocyte duplicates its DNA and subsequently undergoes meiosis I to produce two haploid secondary spermatocytes. Each of the two secondary spermatocytes further undergoes meiosis II to produce two haploid spermatids.
NCERT Page-47 / N-27
Human Reproduction(NCERT)
286420
Two types of cells present in the lining of seminiferous tubules are_____and______
286417
If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from
1 testes to epididymis
2 epididymis to vas deferens
3 ovary to uterus
4 vagina to uterus
Explanation:
(a)
NCERT Page-43 / N-27
Human Reproduction(NCERT)
286418
Which of the following is true regarding the male reproductive system?
1 Sperms are diploid.
2 It includes testes, accessory ducts and glands, and oviducts.
3 The scrotum keeps the testes warmer, thus helping it to promote the sperm formation.
4 Sertoli cells are found in seminiferous tubules and provide nutrition to germ cells.
Explanation:
(d) Sperm are haploid male gametes. Oviducts are a part of female reproductive system. Scrotum maintains testes at lower (2-2.5 degrees) than normal body temperature. Sertoli cells certainly nourish the developing male germ cells.
NCERT Page-43 / N-27
Human Reproduction(NCERT)
286419
Which of the following pair is incorrectly matched?
1 Leydig cells - Androgen.
2 Spermatogenesis - Seminiferous tubules
3 Male reproductive system - Pelvis region
4 Spermatocytes - Mitotic division
Explanation:
(d) A spermatogonium divides into two primary spermatocytes. Each primary spermatocyte duplicates its DNA and subsequently undergoes meiosis I to produce two haploid secondary spermatocytes. Each of the two secondary spermatocytes further undergoes meiosis II to produce two haploid spermatids.
NCERT Page-47 / N-27
Human Reproduction(NCERT)
286420
Two types of cells present in the lining of seminiferous tubules are_____and______
286417
If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from
1 testes to epididymis
2 epididymis to vas deferens
3 ovary to uterus
4 vagina to uterus
Explanation:
(a)
NCERT Page-43 / N-27
Human Reproduction(NCERT)
286418
Which of the following is true regarding the male reproductive system?
1 Sperms are diploid.
2 It includes testes, accessory ducts and glands, and oviducts.
3 The scrotum keeps the testes warmer, thus helping it to promote the sperm formation.
4 Sertoli cells are found in seminiferous tubules and provide nutrition to germ cells.
Explanation:
(d) Sperm are haploid male gametes. Oviducts are a part of female reproductive system. Scrotum maintains testes at lower (2-2.5 degrees) than normal body temperature. Sertoli cells certainly nourish the developing male germ cells.
NCERT Page-43 / N-27
Human Reproduction(NCERT)
286419
Which of the following pair is incorrectly matched?
1 Leydig cells - Androgen.
2 Spermatogenesis - Seminiferous tubules
3 Male reproductive system - Pelvis region
4 Spermatocytes - Mitotic division
Explanation:
(d) A spermatogonium divides into two primary spermatocytes. Each primary spermatocyte duplicates its DNA and subsequently undergoes meiosis I to produce two haploid secondary spermatocytes. Each of the two secondary spermatocytes further undergoes meiosis II to produce two haploid spermatids.
NCERT Page-47 / N-27
Human Reproduction(NCERT)
286420
Two types of cells present in the lining of seminiferous tubules are_____and______
286417
If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from
1 testes to epididymis
2 epididymis to vas deferens
3 ovary to uterus
4 vagina to uterus
Explanation:
(a)
NCERT Page-43 / N-27
Human Reproduction(NCERT)
286418
Which of the following is true regarding the male reproductive system?
1 Sperms are diploid.
2 It includes testes, accessory ducts and glands, and oviducts.
3 The scrotum keeps the testes warmer, thus helping it to promote the sperm formation.
4 Sertoli cells are found in seminiferous tubules and provide nutrition to germ cells.
Explanation:
(d) Sperm are haploid male gametes. Oviducts are a part of female reproductive system. Scrotum maintains testes at lower (2-2.5 degrees) than normal body temperature. Sertoli cells certainly nourish the developing male germ cells.
NCERT Page-43 / N-27
Human Reproduction(NCERT)
286419
Which of the following pair is incorrectly matched?
1 Leydig cells - Androgen.
2 Spermatogenesis - Seminiferous tubules
3 Male reproductive system - Pelvis region
4 Spermatocytes - Mitotic division
Explanation:
(d) A spermatogonium divides into two primary spermatocytes. Each primary spermatocyte duplicates its DNA and subsequently undergoes meiosis I to produce two haploid secondary spermatocytes. Each of the two secondary spermatocytes further undergoes meiosis II to produce two haploid spermatids.
NCERT Page-47 / N-27
Human Reproduction(NCERT)
286420
Two types of cells present in the lining of seminiferous tubules are_____and______
