set 2 MCQ Questions & Answers Detailed Explanation

Question : 1

Analogous organs are

a) common in origin but perform different functions.

b) different in origin but perform similar functions.

c) common in origin and perform common functions.

d) different in origin and perform different functions.

Question : 2

Which of the following are correctly matched with respect to their taxonomic classification?

a) Spiny Anteater, Sea urchin, Sea cucumber-Echinodermata

b) Centipede, Millipede, Spider, Scorpion-Insecta

c) House fly, Butterfly, Tse tse fly, Silverfish-Insecta

d) Flying fish, Cuttlefish, Silverfish-Pisces

Question : 3

Mutation rates are affected by

a) X-rays

b) gamma and beta radiation

c) temperature

d) All of the above

Question : 4

Scientific name of man is

a) Homo habilis

b) Homo erectus

c) Canis familiaris

d) Homo sapiens

Question : 5

Archeopteryx is

a) Reptile of Triassic period

b) Most ancient bird of Jurassic age

c) Reptile of Jurassic period

d) Reptile of both Triassic and Jurassic period

Question : 6

A nucleoside differs from a nucleotide in not having

a) sugar

b) nitrogen base

c) phosphate

d) phosphate and sugar