Question

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"" THIS ALL WRITTEN BY ME ON MY KEYBOARD IT TAKES A LOT OF TIME TO WRITE THIS ALL
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CLASS 12TH
BIOLOGY

CH-3
HUMAN REPRODUCTION

1. There is no cell division involved in

A.) spermatogenesis. B.)oogenesis
C.) embryogenesis.
D.) Spermiogenesis


2. The cell division in secondary oocyte suspended at
A) Anaphase second.
B) Metaphase
C) prophase II
D) Telophase II

3. Vas defens recieves the duct of seminal vesicle forms the
A. Epidymis.
B. Urethra.
C. Ejaculatory duct. D.Ureteralmethns

4. how many functional sperms and how many OVA will be formed by primary spermatocyte and a primary oocyte reproduction?

A. 1, 1. B. 1, 4.
C. 4,1. D. 4, 4

5. Ovulation occurs under the influence of _________
A. Follicle stimulating hormone.
B. Luteinising hormone
C. Progesterone.
D. Estrogen

6. After the release of secondary oocyte, the graafian follicle develops into :-
A. Corpus callosum.
B. Corpus luteum
C. Corpus albicans.
D. Primary follicle

7. Spermiation is the process of release of sperm from :-
A. Seminiferous tubules.
B. Vas diferns
C. Epididymis.
D. Prostate gland

8. The cell which undergoes meiosis first during spermatogenesis is:-
A. Primary spermatocyte.
B. Spermatogonium
C. Spermatid.
D. Secondary spermatocyte

9.spot out the odd one out from the following structure with reference to male reproductive system
A. Rete testis.
B. Epididymis
C. Vasa - efferentia.
D. Isthmus

10. Seminal plasma, the fluid part of a semen is contributed by
i. Seminal vesicles
ii. Prostate gland
iii. Urethra.
iv.Bulbo urethral gland

A. i & ii.
B. i ,ii & iv.
C. ii ,iii & iv
D.i , iv.

11. No. Of chromosomes in polar body of human being is
A. 23. B.46. C.21. D. 1

12. Which one of the following has 23 chromosomes?
A.)Spermatogonia.
B.)Zygote.
C.)Secondary oocyte.
D.)Oogenia

13. Acrosome reaction of the sperm occurs due to
A) its contact with the zone pellucida of the ova.

B) reaction within the uterine environment of the female

C) reaction within the epidermal environment of male

D) androgens produce in the uterus.


14.maten the following representing part of a sperm and their functions and choose the correct option:-

Column I. Column II

A. Head. A. Enzyme
B. Middle piece. B.Sperm
C. acrosome. C. Energy

D. Tail. D. Genetic material
.

15. Which one of the following is not a male accessory gland?

A. Seminal vesicle.
B. Amfoulla.
C. Prostate.
D.bulbourthral





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Answer 1

Answer:

1) D.) Spermiogenesis

2) A) Anaphase second

3) C) Ejaculatory duct.

4)  D) 4, 4  (Have a little bit of doubt)

5) A) Follicle stimulating hormone.

B) Luteinising hormone both

6) C) Corpus albicans.

7) A) Seminiferous tubules.

8) A) Primary spermatocyte.

9) D) Isthmus (Urethra is supposed to be there)

10) B) i ,ii & iv

11) A) 23

12) C)Secondary oocyte.

13) A) its contact with the zone pellucida of the ova.

14) A-iv, B-iii, C-i, D-ii  

15) B) Ampulla.

PLEASE MARK ME AS THE BRAINLIEST

Answer 2

$\huge\underline\mathfrak\purple{Answers\:-}$

1.] B.) oogenesis.

2.] B.) Metaphase.

3.] C.) Ejaculatory duct.

4.] C.) 4, 1.

5.] B.) Luteinising hormone.

6.] B.) Corpus luteum.

7.] A.) Seminiferous tubules.

8.] C.) Spermatid.

9.] D.) Isthmus.

10.] B.) i ,ii & iv,That is - Seminal vesicles, Prostate gland and Bulbourethral gland.

11.] A.) 23.

12.] A.) Spermatogonia.

13.] D.) androgens produced in the uterus.

14.] A-iv, B-iii, C-i, D-ii

15.] B.) Ampulla.

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