Friday, April 19, 2019

WBCS Polity and Constitution MCQs Prelims and Mains

General Knowledge of Biology For WBCS Prelims Exams P8


Page 8

135871. Lysine is an essential amino acid because
A
It has a high nutritive value
B
It is not formed in the body and has to be provided through food
C
It is very rate
D
It is an important constituent of all proteins
B
Correct Answer: B. It is not formed in the body and has to be provided through food
251672. Mammals respire by?
A
gills
B
trachea
C
skin
D
lungs
D
Correct Answer: D. lungs
252773. Excess of which of the following in the blood causes the “Blue BabySyndrome” disease?
A
iron
B
lead
C
methamoglobin
D
nitrate
D
Correct Answer: D. nitrate
131374. The narrow portion between uterus and vagina of higher mammals is known as
A
Oviduct
B
Cervix
C
Clitoris
D
Urethra
B
Correct Answer: B. Cervix
144275. RNA of a retrovirus can produce DNA by
A
Endonuclease
B
Reverse transcriptase
C
DNA polymerase
D
RNA polymerase
B
Correct Answer: B. Reverse transcriptase
129876. Limbless Amphibia belongs to the order
A
Gymnophiona
B
Anura
C
Urodela
D
None of the above
A
Correct Answer: A. Gymnophiona
132877. Ruminant Stomach is possessed by
A
Pigeon
B
Cameleon
C
Cow
D
Dog
C
Correct Answer: C. Cow
129278. Scurvy is caused by the deficiency of
A
Vit. C
B
Vit. A
C
Vit. D
D
Vit. B
A
Correct Answer: A. Vit. C
144179. The well-known antibiotic penicillin is obtained from this plant group:
A
Lichen
B
Angiosperm
C
Algae
D
Fungi
D
Correct Answer: D. Fungi
130980. Cancer is caused by activation of genes
A
Structural genes
B
Jumping Genes
C
Regulatory genes
D
Oncogenes
D
Correct Answer: D. Oncogenes



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