set 4 MCQ Questions & Answers Detailed Explanation

Question : 1

Speciation is

a) new environmental ways for existence

b) making of independent species

c) macro evolution

d) all of the above

Question : 2

A plant having seeds but lacking flowers and fruits belongs to

a) Ferns

b) Pteridophytes

c) Mosses

d) Gymnosperms

Question : 3

A biogeographic region with significant reservoir of biodiversity that is under threat from humans is called as

a) biodiversity reservoir

b) bioendangered region

c) biodiversity hotspot

d) environmentally endangered region

Question : 4

The two strands of DNA are held together by

a) phosphodiester bonds

b) hydrogen bonds

c) peptide bonds

d) S – S bonds

Question : 5

Binomial Nomenclature was given by

a) Carolus Linneaus

b) Lamarck

c) Ernst Mayr

d) Cuvier

Question : 6

Consider the following statements :

1. A colourblind person cannot distinguish between red and green.
2. Colour blindness is related with a defect in cone cells.

a) 1 and 2

b) 2 only

c) 1 only

d) None