Main Concepts of Life Science TNPSC Group 1 Questions

Main Concepts of Life Science MCQ Questions

1.

Consider the following statements:

I. The DNA controls all the activities of the cell

II. It transfers the hereditary characters from one generation to the next

III. It controls protein synthesis

IV. It produces RNA

A.

I alone is correct

B.

I and II are correct

C.

I,II and III are correct

D.

All the above

ANSWER :

D. All the above

2.
Autotrophs in an ecosysytem are called
A.
Producers
B.
Consumers
C.
Decomposers
D.
Aboitic constituents
ANSWER :
A. Producers
3.
An ecosystem has two components, namely
A.
Weeds and trees
B.
Biotic and abiotic
C.
Frogs and man
D.
Plants and animals
ANSWER :
B. Biotic and abiotic
4.

Match the following using the codes given below

List I List II
a) Fungus 1.) Physiology
b) Classification 2.) Taxonomy
c) Shape and Structure 3.) Mycology
d) Functional Movements 4.) Morphology
A.

a-2,b- 4,c- 1,d- 3

B.

a-3,b- 4,c- 2,d- 1

C.

a-2,b- 1,c- 4,d- 3

D.

a-3,b- 2,c- 4,d- 1

ANSWER :

D. a-3,b- 2,c- 4,d- 1

5.
Founder of Binomial nomenclature is
A.
Bentham and Hooker
B.
Cronquist
C.
Linnaeus
D.
Tippo
ANSWER :
C. Linnaeus
6.

Match List I correctly with List II and select your answer using the codes given below:

List I List II
a) Virus 1.) Robert Hooke
b) Bacteria 2.) Robert Brown
c) Nucleus 3.) Dimitry Ivanowsky
d) Cell 4.) Leeuwenhoek
A.

a-3,b- 2,c- 1,d- 4

B.

a-3,b- 4,c- 2,d- 1

C.

a-1,b- 2,c- 3,d- 4

D.

a-2,b- 3,c- 4,d- 1

ANSWER :

B. a-3,b- 4,c- 2,d- 1