An oocyte is released from the ovary under the influence of LH

1. After completing meiosis and before polar body are released

2. After completing meiosis I and before release of polar body

3. After completing meiosis

4. After completing meiosis I and after release of polar body

Subtopic:  Menstrual Cycle: Luteal Phase |
 57%
From NCERT
AIIMS - 2001
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Both corpus luteum and macula lutea are

1. found in human ovaries

2. a source of hormones

3. characterized by a yellow colour

4. contributory in maintaining pregnancy.

 

Subtopic:  Menstrual Cycle: Luteal Phase |
 57%
AIIMS - 2003
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Which one of the following statements with regard to embryonic development in humans

is correct?

1. Cleavage divisions bring about considerable increase in the mass of protoplasm.

2. In the second cleavage division, one of the two blastomeres usually divides a little

sooner than the second.

3. With more cleavage divisions, the resultant blastomeres become larger and larger.

4. Cleavage division results in a hollow ball of cells called morula

Subtopic:  Implantation : Part 2 | Implantation |
AIIMS - 2003
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Women who consumed the drug thalidomide for relief from vomiting during early months

of pregnancy gave birth to children with 

1. No spleen

2. Harelip

3. Extra fingers and toes

4. Underdeveloped limbs

Subtopic:  Fetal Development & Parturition |
 62%
AIIMS - 2004
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Which one of the following events is correctly matched with the time period in a normal menstrual cycle?

(1) Release of egg : 5th day

(2) Endometrium regenerates : 5 - 10 days

(3) Endometrium secretes nutrients for implantation : 11-18 days

(4) Rise in progesterone level : 1 - 15 days

Subtopic:  Introduction to Menstrual Cycle: 2 | Introduction to Menstrual Cycle |
 57%
From NCERT
AIIMS - 2005
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Which of the following is true regarding sperm?

(1) Fertilizin : For penetrating egg membrane

(2) Hyaluronidase : For penetrating egg membrane

(3) Acrosin : Dissolves corona radiata

(4) Capacitation : Takes place in penis

Subtopic:  Implantation : Part 1 | Implantation |
 58%
AIIMS - 2007
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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 |
 51%
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 |
 50%
AIIMS - 2011
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