CBSE BOARD XII, asked by Anonymous, 7 months ago

Can anyone plzz handover me with some MCQs related to Human Reproduction (chapter-3 class 12th)​

Answers

Answered by OOOIRKIOOO
1

Which of the following is a transporting tube leading from the bladder which brings urine outside the body via penis?

- Ureter

- Epididymis

- Ejaculatory duct

- Urethral meatus

Sperms produce an enzymatic substance for dissolving egg coverings. It is called

- Hyaluronic acid

- Hyaluronidase

- Androgamone

- Diastase

10 oogonia yield 10 primary oocytes, then how many ova are produced on completion of Oogenesis?

- 5

- 10

- 20

- 40

_______ is a lytic enzyme released by the sperm.

- Hyaluronidase

- Trypsin

- Helicase

- None of the above

How many autosomes does a human primary spermatocyte have?

- 34

- 44

- 54

- 33

Where does the ovum receive the sperm?

- Animal pole

- Vegetal pole

- Zona pellucida

- None of the above

___________ is an organelle that helps the sperm to penetrate the ovum

- Acrosome

- Zona pellucida

- Megalis

- None of the above

Umbilical cord contains _________

- Pluripotent stem cells

- Cord blood stem cells

- Blood stem cells

- None of the above

How does human sperm locomote?

- Flagella

- Cilia

- Neutrophils

- None of the above

Cryptorchidism is a condition where _________

- One of both testes are not developed

- One or both testes fail to descend into the scrotum

- One or both testes are not formed

- None of the above

Bidder’s canal receives __________

- Eggs

- Sperms

- Ammonia

- Oxygenated blood

The hormone that is released from the testes is ______

- Progesterone

- Vasopressin

- Testosterone

- None of the above

Wolffian duct is also known as ____________

- Mesonephric duct

- Ejaculatory duct

- Major sublingual duct

- Cystic duct

Acrosome is filled with _________

- Lipids

- Hormones

- Digestive enzymes

- None of the above

_________ is an example of a viviparous animal.

- Goat

- Duck

- Crocodile

- None of the above

__________ is an example of an oviparous animal

- Pidgeon

- Elephant

- Sheep

- None of the above

The ________ is an ovoviviparous animal

- Basking shark

- Bonobo

- Blue shark

- None of the above

The _________ is a temporary organ that connects a mammalian mother to its foetus

- Placenta

- Chorion

- Endometrium

- None of the above

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