A second pregnancy during an ongoing pregnancy is prevented by:

1.Estrogen2.HPL
3.progesterone4.HCG

Subtopic:  Fetal Development & Parturition |
 59%
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The most critical period of gestation where the fetus is most vulnerable to genetic birth defects from drugs taken by the mother is:
1. last trimester
2. third to sixth month
3. first trimester
4. a week prior to parturition

Subtopic:  Fetal Development & Parturition |
 61%
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Implantation does not:
1. involve a blastocyst
2. occur in the uterine tube
3. establishes pregnancy
4. occurs by seventh-eighth day

Subtopic:  Implantation |
 61%
From NCERT
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Seminal plasma has contributions of all the following except:
1. bulbourethral glands.
2. testes.
3. seminal vesicles.
4. prostate gland

Subtopic:  Male Reproductive Duct System |
 76%
From NCERT
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Type B spermatogonia divide to form:

1.Type A spermatogonia.2.spermatids.
3.a primary spermatocyte.4.a secondary spermatocyte

Subtopic:  Seminiferous Tubules & Spermatogenesis |
 60%
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Identify the cell that can be seen in primordial, primary, secondary and tertiary follicle :

1.oogonium2.primary oocyte
3.secondary oocyte4.ovum

Subtopic:  oogenesis |
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The number of mature ova produced by a young, healthy, nonpregnant adult woman each year would be:

1. 0 2. 6
3. 12 4. 24
Subtopic:  oogenesis |
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The correct chronology in the ovarian cycle in a non-pregnant woman would be:

1. corpus luteum > ovulation > primary & secondary follicles > vesicular follicle
2. primary & secondary follicles > vesicular follicle > ovulation > corpus luteum
3. ovulation > primary follicles > corpus luteum > secondary & vesicular follicles
4. ovulation > primary & secondary follicles > corpus luteum > vesicular follicle
Subtopic:  Ovary |
 68%
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If pregnancy is established, the corpus luteum:

I: is no longer needed because of hormones produced by the pre-embryo
II: typically continues to secrete progesterone through the third month of pregnancy
III: transforms into a corpus albicans soon after the placenta is fully functional

 

1. I and II are correct 2. I and III are correct
3. I and II are incorrect 4. II and III are correct
Subtopic:  Menstrual Cycle: Pre Ovulatory Phase |
 58%
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Identify the correct statement:

1. GnRH stimulates the production of estrogen [in females] or testosterone [in males] directly
2. LH stimulates ovulation (female) or spermatogenesis (male)
3. FSH initiates and maintains the development of accessory sex organs (both sexes)
4. estrogen stimulates oogenesis (female only)
Subtopic:  Male Reproductive System | Female Reproductive System-1 |
 53%
From NCERT
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