genetics, evolution of life & ecological biodiversity - Category wise Question and Answer Practice Test with Solutions

Question : 21

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 : 22

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 : 23

Mutation rates are affected by

a) X-rays

b) gamma and beta radiation

c) temperature

d) All of the above

Question : 24

Who proved that DNA is basic genetic material?

a) Watson

b) Boveri and Sutton

c) Griffith

d) Hershey and Chase

Question : 25

Initiation codons for protein synthesis are

a) AGA and GUA

b) AAU and UAA

c) UUU AND GGG

d) GUG and AUG