Biology MCQs FOR UPSC(NDA/NA) Exam, SET 1

 Biology MCQs FOR UPSC(NDA/NA) Exam

UPSC NDA/NA BIOLOGY MCQ Q.1

Presbyopia is a visual defect caused by -

(A) elongation of the eyeball
(B) shortened curvature of the eye lens
(C) Weakening of the ciliary muscles
(D) gradually increasing flexibility of the eye lens


Ans.(C)

UPSC NDA/NA BIOLOGY MCQ Q.2

Which one among the following animals does not undergo periodic moulting of their external body covering?

(A) cockroach
(B) cobra
(C) earthworm
(D) dragonfly


Ans.(C)

UPSC NDA/NA BIOLOGY MCQ Q.3

Which one among the following organs in humans is not involved in the elicitation of an immune response?

(A) thymus
(B) brain
(C) spleen
(D) lymph nodes


Ans.(B)

UPSC NDA/NA BIOLOGY MCQ Q.4

From which part of turmeric is the turmeric powder obtained?

(A) dried rhizome
(B) dried root
(C) dried fruit
(D) seed


Ans.(A)

UPSC NDA/NA BIOLOGY MCQ Q.5

Which one among the following substances is never excreted through urine under normal circumstances in any healthy individual?

(A) urea
(B) sodium
(C) amino acid
(D) potassium


Ans.(c)

UPSC NDA/NA BIOLOGY MCQ Q.6

Which one among the following animals gives birth to the biggest baby?

(A) elephant
(B) rhinoceros
(C) blue whale
(D) hippopotamus


Ans.(C)

UPSC NDA/NA BIOLOGY MCQ Q.7

Which one among the following body parts contracts slowly, but can remain contracted for a longer time?

(A) face
(B) arms
(C) intestine
(D) legs


Ans.(D)

UPSC NDA/NA BIOLOGY MCQ Q.8

Which one among the following diseases is not caused by polluted water?

(A) dysentery
(B) jaundice
(C) typhoid
(D) tuberculosis


Ans.(D)

UPSC NDA/NA BIOLOGY MCQ Q.9

Which one among the following animals is a mammal?

(A) great indian bustard
(B) gharial
(C) platypus
(D) hornbill


Ans.(C)

UPSC NDA/NA BIOLOGY MCQ Q.10

The main thinking part of the brain is

(A) midbrain
(B) hypothalamus
(C) forebrain
(D) hindbrain


Ans.(C)