Acrosome reaction in sperm is triggered by

(1) capacitation

(2) release of lysin

(3) influx of Ca++

(4) release of fertilizin

Subtopic:  Fertilization: Part 1 | Fertilization: Part 2 | Fertilization |
AIIMS - 2008
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How many sperms are formed from a secondary spermatocyte?

(1) 4

(2) 8

(3) 2

(4) 1

Subtopic:  Spermiogenesis/Sperm Structure/Hormonal Regulation |
 50%
From NCERT
AIIMS - 2008
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What do A, B, C and D represent?

A B C D
1. Infundibulum Fertilization Myometrium Morula
2. Infundibulum Fertilization Endometrium Blastocyst
3. Isthmus Fertilization Myometrium Blastocyst
4. Isthmus Fertilization Endometrium Morula
Subtopic:  Female Reproductive System-1 |
 66%
From NCERT
AIIMS - 2010
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Which of the following statements is correct?

(1) Monkey, apes and humans exhibit estrous cycle.

(2) Urine is pale yellow and slightly alkaline.

(3) Lots of enzymes are present in bile juice.

(4) Ovulation in humans is spontaneous.

Subtopic:  Introduction to Menstrual Cycle: 2 | Introduction to Menstrual Cycle |
 52%
AIIMS - 2011
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The 'cells of Rauber' are

(1) secretory cells of endometrium in uterus

(2) inner cell mass of blastocoel

(3) outer cells of trophoblast in contact with uterine wall

(4) cells of trophoblast, in contact with inner cell mass of blastocyst.

Subtopic:  Embryonic Development till Gastrulation |
 53%
AIIMS - 2012
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Choose the correct statement.

1. hPL plays a major role in parturition
2. Foetus shows movements first time in the 7th month of pregnancy
3. Signal for parturition comes from fully developed foetus and placenta
4. Embryo's heart is formed by the 2nd month of pregnancy
Subtopic:  Fetal Development & Parturition |
 89%
From NCERT
AIIMS - 2012
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Starting from the maximum, arrange the following male reproductive accessory organs in the correct order, based on the amount of secretion poured into urethra

(i) Prostrate gland

(ii) Seminal vesicle

(iii) Bulbourethral gland

(1) (i) > (ii) > (iii)

(2) (iii) > (ii) > (i) 

(3) (ii) > (iii) > (i)

(4) (ii) > (i) > (iii)

Subtopic:  Male Reproductive Duct System |
 76%
AIIMS - 2013
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During menstrual cycle, levels of LH and estrogen are highest around

(1) 14th day

(2) 21st day

(3) 7th day

(4) 28th day

Subtopic:  Menstrual Cycle: Luteal Phase |
 92%
From NCERT
AIIMS - 2014
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Hormones for the menstrual cycle are produced by

(1) ovaries only

(2) uterus only

(3) ovaries only

(4) ovaries and anterior pitutory

Subtopic:  Introduction to Menstrual Cycle: 2 | Introduction to Menstrual Cycle |
 90%
From NCERT
AIIMS - 2015
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Select the correct explanation for the labels A, B, C and D.

(1)    A represents the fertilized zygote.

(2)    B represents the stage of morula formation.

(3)    C represents the blastocyst.

(4)    D represents the blastocyst implantation.

 

Subtopic:  Implantation : Part 2 | Implantation |
 61%
From NCERT
AIIMS - 2015
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