Choose the incorrect statement from the following:

1. in birds and mammals, internal fertilisation takes place
2. colostrum contains antibodies and nutrients
3. polyspermy is prevented by the chemical changes in the egg surface
4. In the human female, implantation occurs almost seven days after fertilisation

Subtopic:  Fertilization |
From NCERT
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Identify the wrong statement from the following:
 

1. High levels of estrogen trigger the ovulatory surge.
2. Oogonial cells start to proliferate and give rise to functional ova in regular cycles from puberty onwards,
3. Sperms released from seminiferous tubules are poorly motile/ non-motile.
4. Progesterone level is high during the post ovulatory phase of menstrual cycle.

Subtopic:  Introduction to Menstrual Cycle: 1 | oogenesis |
From NCERT
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Spot the odd one out from the following structures with reference to the male reproductive system:

1. Rete testis

2. Epididymis

3. Vasa efferentia

4. Isthmus 

Subtopic:  Male Reproductive System |
 97%
From NCERT
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Seminal plasma, the fluid part of semen, is contributed by
I. Seminal vesicle                               
II. Prostate
III. Urethra                                       
Iv. Bulbourethral gland

1. I and II

2. I,II and IV

3. II, III and IV

4.  I and IV

Subtopic:  Male Reproductive Duct System |
 79%
From NCERT
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Spermiation is the process of the release of sperms from:

1. seminiferous tubules

2. vas deferens

3. epididymis

4. prostate gland

Subtopic:  Spermiogenesis/Sperm Structure/Hormonal Regulation |
 93%
From NCERT
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Mature Graafian follicle is generally present in the ovary of a healthy human female around

1. 5-8 day of menstrual cycle

2. 11-17 day of menstrual cycle

3. 18-23 day of menstrual cycle

4. 24-28 day of menstrual cycle  

Subtopic:  Introduction to Menstrual Cycle: 2 |
 67%
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 Acrosomal reaction of the sperm occurs due to
 

1. its contact with zona pellucida of the ova
2. reactions within the uterine environment of the female
3. reactions within the epididymal environment of the male
4. androgens produced in the uterus 

Subtopic:  Fertilization |
 90%
From NCERT
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Which one of the following is not a male accessory gland?

1. Seminal vesicle

2. Ampulla

3. Prostate

4. Bulbourethral gland

Subtopic:  Male Reproductive Duct System |
 96%
From NCERT
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The spermatogonia undergo division to produce sperm by the process of spermatogenesis. Choose the correct one with reference to above.
 
1. Spermatogonia have 46 chromosomes and always undergo meiotic cell division.
2. Primary spermatocytes divide by mitotic cell division.
3. Secondary spermatocytes have 23 chromosomes and always undergo second meiotic cell division.
4. Spermatozoa are transformed into spermatids.
Subtopic:  Spermiogenesis/Sperm Structure/Hormonal Regulation |
 61%
From NCERT
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Which among the following has 23 chromosomes?

1. Spermatogonia                               

2. Zygote

3. Secondary oocyte                           

4.  Oogonia

Subtopic:  Male Reproductive System |
 82%
From NCERT
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