Select the correct option describing gonadotropin activity in a normal pregnant female

1. High level of FSH and LH stimulates the thickening of endometrium

2. High level of FSH and LH facilitate implantation of the embryo

3. High level of HCG stimulates the synthesis of estrogen and progesterone

4. High level of HCG stimulates the thickening of endometrium

Subtopic:  Implantation : Part 1 | Implantation : Part 2 | Implantation |
NEET - 2014
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Perisperm differs from endosperm in

1. being a haploid tissue

2. having no reserve food

3. being a diploid tissue

4. its formation by fusion of secondary nucleus with several sperms

Subtopic:  Seed |
NEET - 2013
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Which one of the following statements is false in respect of viability of mammalian

sperm?

1. Sperm is viable for only up to 24 h

2. Survival of sperm depends on the pH of the medium and is more active in alkaline

medium

3. Viability of sperm is determined by its motility

4. Sperms must be concentrated in a thick suspension

Subtopic:  Semen and Male Fertility |
 54%
NEET - 2012
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The Leydig cells as found in the human body are the secretory source of

1. progesterone

2. intestinal mucus

3. glucagon

4. androgens

Subtopic:  Seminiferous Tubules & Spermatogenesis |
 90%
From NCERT
NEET - 2012
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Which one of the following helps in absorption of phosphorus from soil by plants?

1. Rhizobium

2. Anabaena

3. Frankia

4. Glomus

Subtopic:  Microbes as Biofertilizer |
 70%
From NCERT
NEET - 2011
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The figure given below depicts a diagrammatic sectional view of the female

reproductive system of humans. Which one set of three parts out of A-F have been

correctly identified?

1. C-lnfundibulum, D-Fimbriae, E-Cervix

2. D-Oviducal funnel, E-Uterus, F-Cervix

3. A-Perimetrium, B-Myometxium, C-Fallopian tube

4. B-Endometrium, C-Infundibulum, D-Fimbriae

Subtopic:  Female Reproductive System-1 | Female Reproductive System-2 |
 80%
From NCERT
NEET - 2011
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Sertoli cells are found in

1. ovaries and secrete progesterone

2. adrenal cortex and secrete adrenalin

3. seminiferous tubules and provide nutrition to germ cells

4. pancreas and secrete cholecystokinin

Subtopic:  Seminiferous Tubules & Spermatogenesis |
 96%
From NCERT
NEET - 2010
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Vasa efferentia are the ductules leading from

1. testicular lobules to rete testis

2. rete testis to vas deferens

3. vas deferens to epididymis

4. epididymis to urethra

Subtopic:  Male Reproductive Duct System |
 70%
From NCERT
NEET - 2010
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The second maturation division of the mammalian ovum occurs

1. shortly after ovulation before the ovum makes entry imto the Fallopian rube

2. until after the ovum has been penetrated by a sperm

3. until the nucleus of the sperm has fused with that of the ovum

4. in the Graafian follicle following the first maturation division

Subtopic:  Fertilization: Part 2 | Fertilization |
 67%
From NCERT
NEET - 2010
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Which one of the following statements about human sperm is correct?

1. Acrosome has a conical pointed structure used for piercing and penetrating the

egg, resulting in fertilization

2. The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilization

3. Acrosome serves as a sensory structure leading the sperm towards the ovum

4. Acrosome serves no particular function

Subtopic:  Spermiogenesis/Sperm Structure/Hormonal Regulation |
 59%
From NCERT
NEET - 2010
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