You are currently viewing Class 12 Biology MCQs Chapter – 4
Class 12 Biology MCQs Chapter - 4

Class 12 Biology MCQs Chapter – 4

1. Which mechanical device to control child birth is fitted on the cervix ?

( A ) Diaphragm

( B ) Condom

( C ) Loop

( D ) Copper T.

ANSWER-( A )

 

2. Progesterone present in contraceptive pill is meant for :

( A ) checking ovulation

( B ) preventing fertilisation

( C ) preventing implantation of zygote

( D ) preventing cleavage

ANSWER-( A )

 

3. A contraceptive pill prevents ovulation by :

( A ) blocking fallopian tube

( B ) inhibiting release of FSH and LH

( C ) stimulating release of FSH and LH

( D ) causing immediate degeneration of released ovum

ANSWER-( B )

 

4. Polymerase chain reaction ( PCR ) is used for the detection of :

( A ) Genital Herpes

( B ) Malaria

( C ) Small pox

( D ) Measles

ANSWER-( A )

 

5.Gonorrhoea is a :

( A ) Bacterial disease

( B ) Venereal disease

( C ) STD

( D ) All of these

ANSWER-( D )

 

6 : Barrier methods of birth control are use of :

( A ) condom

( B ) vaginal pouch

( C ) diaphragm

( D ) all of these

ANSWER-( D )

 

7. Spermicides kill the sperms in the :

( A ) vagina

( B ) cervix

( C ) Fallopian tubes

( D ) both ( A ) and ( B )

ANSWER-( D )

 

8. Which of the following in sexually transmitted disease

( A ) Syphilis & gonorrhoea

( B ) Syphilis & Tuberculosis

( C ) Tuberculosis & Asthma

( D ) Diptheria & plague

ANSWER-( A )

 

9. Medical Termination of Pregnancy is very safe upto

( A ) 12 th wk of Foetus

( B ) 20 th wk . of Foetus

( C ) 28 th wk Foetus

( D ) None

ANSWER-( A )

 

10. In production of test tube babies :

( A ) Fertilization is external and foetus formation internal

( B ) Fertilization is internal and foetus formation external

( C ) Both fertilization and foetus formation internal

( D ) Both fertilization and foetus formation external

ANSWER-( A )

 

11. A method of sterilisation is :

( A ) IUDCB

( B ) Diaphragm

( C ) Tubectomy

( D ) Loop

ANSWER-( C )

 

12. Which of the following is mechanical barrier used in birth control ?

( A ) Copper – T

( B ) Diaphragm

( C ) Loop

( D ) Dalcon shield

ANSWER-( B )

 

13. The test which is used for study of genetic and metabolic defects of an unborn baby is :

( A ) Amniocentesis

( B ) Erythroblastosis

( C ) Angiogram

( D ) Clotting test

ANSWER-( A )

 

14. Average failure rate of intrauterine contraceptive device is :

( A ) 23 %

( B ) 20 %

( C ) 1 %

( D ) 4 %

ANSWER-( D )

 

15. Which of the following disease is diagnosed by Australian antigen test :

( A ) AIDS

( B ) Hepatitis

( C ) Genital warts

( D ) Chancroid

ANSWER-( B )

 

16. In AIDS the drug of choice is :

( A ) acyclovir

( B ) didanosine

( C ) zidovudine

( D ) tetracycline

ANSWER-( C )

 

17. The test which is misused for sex identification of an unborn baby is :

( A ) clotting test

( B ) amniocentesis

( C ) erythroblastosis

( D ) angiogram

ANSWER-( B )

 

18. Which of the following is a method of birth control ?

( A ) GIFT

( B ) IVF – ET

( C ) IUCDs

( D ) HTF

ANSWER-( C )

 

19. Hormone releasing IUCD is :

( A ) Lippes loop

( B ) Multiload 375

( C ) CUT

( D ) LNG – 20

ANSWER-( D )

 

20. ” Morning After Pills ” can prevent pregnancy if taken within …….. hours .

( A ) 50

( B ) 60

( C ) 30

( D ) 72

ANSWER-( D )

 

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