The correct sequence of spermatogenetic stages leading to the formation of sperms in a

mature human testis is

1. spermatocyte - spermatogonia - spermatid - sperms

2. spermatogonia - spermatocyte - spermatid -sperms

3. spermatid-spermatocyte-spermatogonia -sperms

4. spermatogonia-spermatid-spermatocyte -sperms

Subtopic:  Seminiferous Tubules & Spermatogenesis | Spermiogenesis/Sperm Structure/Hormonal Regulation |
 87%
From NCERT
NEET - 2009
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Which one of the following is the correct matching of the events occurring during

menstrual cycle?

1. Ovulation                         - LH and FSH attain peak level and shrp fall in the secretion 

                                              of progesterone

2. Proliferative phase                  - Rapid regeneration of myometrium and  maturation of

                                                  Graafian follicle

3. Development of corpus luteum - Secretory phase and increased secretion of

                                                    progesterone

4. Menstruation                          - Breakdown of myometrium and ovum not fertilized

Subtopic:  Menstrual Cycle: Luteal Phase |
 63%
From NCERT
NEET - 2009
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In humans, at the end of the first meiotic division, the male germ cells differentiate into

the 

1. primary spermatocytes

2. secondary spermatocytes

3. spermatids

4. spermatogonia

Subtopic:  Seminiferous Tubules & Spermatogenesis | Spermiogenesis/Sperm Structure/Hormonal Regulation |
 67%
From NCERT
NEET - 2008
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Which extra embryonic membrane in humans prevents desiccation of the embryo inside

the uterus ?

1. Chorion

2. Allantois

3. Yolk sac

4. Amnion

Subtopic:  Implantation : Part 2 | Embryonic Development till Gastrulation | Implantation |
 53%
NEET - 2008
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Which one of the following statement is incorrect about menstruation?

1. During normal menstruation about 40 mL blood is lost

2. The menstrual fluid can easily clot

3. At menopause in the female, there is especially abrupt increase in gonadotropic

hormones

4. The beginning of the cycle of menstruation is called menarche

Subtopic:  Introduction to Menstrual Cycle: 2 | Introduction to Menstrual Cycle |
 58%
NEET - 2008
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Which part of ovary in mammals acts as an endocrine gland after ovulation?

1. Graafian follicle

2. Stroma

3. Germinal epithelium

4. Vitelline membrane

Subtopic:  Menstrual Cycle: Luteal Phase |
 83%
From NCERT
NEET - 2007
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In the human female, menstruation can be deferred by the administration of:

1. LH only

2. Combination of FSH and LH

3. Combination of estrogen and progesterone

4. FSH only

Subtopic:  Menstrual Cycle: Luteal Phase |
 69%
NEET - 2007
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Withdrawal of which of the following hormones is the immediate cause of menstruation ?

1. Estrogen

2. FSH

3. FSH-RH

4. Progesterone

Subtopic:  Menstrual Cycle: Luteal Phase |
 84%
From NCERT
NEET - 2006
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Cleavage differs from mitosis in lacking

1. synthetic phase

2. growth phase

3. both 1. and 2.

4. all of these

Subtopic:  Implantation : Part 2 | Embryonic Development till Gastrulation | Implantation |
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Low levels of LH during the secretory phase of the menstrual cycle are primarily due to

1. high estrogen level

2. inhibin

3. high progesterone level

4. high estrogen and progesterone level.

Subtopic:  Introduction to Menstrual Cycle: 2 | Introduction to Menstrual Cycle |
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