Class 12 Biology MCQs Chapter – 4
21. Candidiasis is caused by :
( A ) Public Lice
( B ) Vaginal yeast
( C ) Pin worm
( D ) Giant Amoeba
ANSWER-( B )
22. Confirmatory test for syphillis is
( A ) ELISA
( B ) PCR
( C ) VDRL
( D ) DNA hybridisation
ANSWER-( C )
23. Which of the following is a non medicated intrauterine device ?
( A ) CUT
( B ) Lippes Loop
( C ) Cu7
( D ) LNG – 20
ANSWER-( B )
24. World AIDS Day is
( A ) December 21
( B ) December 1
( C ) November 1
( D ) June 5
ANSWER-( B )
25. The common means for transmission of AIDS is :
( A ) Sexual intercourse
( B ) blood transfusion
( C ) Placental transfer
( D ) All of these
ANSWER-( A )
26. The main reason for makin Cooper T most effective and popular Intra uterine device in female :
( A ) Reduction in fertilization ability of Spermatozoa
( B ) Increased phagocytosis of Spermatozoa due to release of copper ion
( C ) Reduction in motility of spermatozoa
( D ) All of these
ANSWER-( D )
27. Ammiocentesis is a technique to
( A ) determine error in amino acid metabolism in embryo
( B ) Cardiac deformity in Foetus
( C ) determine chromosomal defect in foetus
( D ) All of above
ANSWER-( C )
28. Gonorrhoea and syphilis are common in :
( A ) African countries
( B ) Europeon countries
( C ) All over the world
( D ) Asian countries
ANSWER-( C )
29. Which one of the following is sexually transmited diseases ?
( A ) Typhoid
( B ) Tetanus
( C ) Leprosy
( D ) Hepatitis – B
ANSWER-( D )
30. The main reason for making Copper T – most effective and popular Intra Uterine device in female
( A ) Reduction in fertilization ability of spermatozoa
( B ) Increased phagocytosis of spermatozoa due to release of copper ion
( C ) Reduction in motility of sperma tozoa
( D ) All of these
ANSWER-( D )
31. Which one is the safest method of birth control ?
( A ) M.T.P .
( B ) Sterlisation technique
( C ) Rhythm method
( D ) use of physical barriers
ANSWER-( B )
32. Nirodh is :
( A ) a type of birth – control pill
( B ) a popular brand of male condom
( C ) An awareness programme to encourage vasectomy
( D ) Related to tubectomy
ANSWER-( B )
33. Chemical method of birth control involves the use of :
( A ) condom
( B ) loop
( C ) cream or jelly
( D ) diaphragm
ANSWER-( C )
34. Which of the following is a mechanical device which prevents pregnancy by preventing fertilization and an IUCD for birth control ?
( A ) Copper – T
( B ) A combined pill
( C ) Foam
( D ) Abortant pill
ANSWER-( A )
