Which is a true statement about luteinizing hormone in the female reproductive system?
1. It inhibits ovulation.
2. It causes mitosis of the primary oocyte. 
3. It is produced by the hypothalamus 
4. It is responsible for mediating the production of estrogen and progesterone simultaneously.

Subtopic:  Menstrual Cycle: Luteal Phase |
 68%
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Which of the following is secreted only during the luteal phase of a menstrual cycle ?

1. LH

2. FSH

3. Estrogen

4. Progesterone

Subtopic:  Menstrual Cycle: Luteal Phase |
 62%
From NCERT
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In the process of oogenesis, a polar body:

I. is formed before fertilization.

II. is formed after fertilization.

III. normally receives most of the cytoplasm of the cell.

1. Only I is correct

2. Only II is correct

3. Only I and II are correct

4. I, II, and III are correct

Subtopic:  Ovary |
From NCERT
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Which event is incorrectly matched with the time of its occurence [with respect to a 28 days menstrual cycle]?

1. Beginning of the menstrual flow - Day 1

2. Ovulation - Day 14

3. Beginning of the proliferative phase - Day 5

4. Peak  secretion of estrogen - Day 22

Subtopic:  Introduction to Menstrual Cycle: 2 | Introduction to Menstrual Cycle |
 71%
From NCERT
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Which human male accessory reproductive duct receives a duct from the seminal vesicle?

1. Rete testis

2. Vas deferens

3. Epididymis

4. Urethra

Subtopic:  Male Reproductive Duct System |
 59%
From NCERT
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In the male human being, sperms contain autosomes and

1. Only one Y-chromosome

2. Only one X-chromosome

3. Both X and Y-chromosome

4. Either X or Y-chromosome

Subtopic:  Sex Determination in Humans |
From NCERT
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The structure of testis of a mammal can be identified by the presence of

(1) Spermatogonia

(2) Spermatocytes

(3) Cells of Sertoli

(4) Spermatids

Subtopic:  Seminiferous Tubules & Spermatogenesis |
From NCERT
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In the vertebrates testes, for nourishment during spermiogenesis, the spermatids get attached to

(1) Interstitial cells

(2) Sperm-mother cells

(3) Spermatocytes

(4) Sertoli cells

Subtopic:  Seminiferous Tubules & Spermatogenesis |
 87%
From NCERT
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The menstrual cycle begins with the casting off of

(1) Placenta

(2) Blood

(3) Endometrial lining along with blood vessels

(4) All the three

Subtopic:  Introduction to Menstrual Cycle: 1 | Introduction to Menstrual Cycle: 2 | Introduction to Menstrual Cycle |
 76%
From NCERT
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During parturition, the fetal ejection reflex triggers the release of:

1. An increasing amount of estrogen and a decreasing amount of progesterone from the placenta
2. A decreasing amount of estrogen and an increasing amount of progesterone from the placenta
3. Oxytocin from the maternal pituitary
4. GnRH from the fetal hypothalamus
Subtopic:  Fetal Development & Parturition |
 88%
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