Genetics TNPSC Group 1 Questions

Genetics MCQ Questions

13.
The genetic material in a cell is
A.
DNA
B.
Chromosome
C.
Gene
D.
Mitochondria
ANSWER :
A. DNA
14.
Name the animal which is used in the study of genetics.
A.
Friut fly
B.
Glow worm
C.
Cockroach
D.
Mosquito
ANSWER :
A. Friut fly
15.
The theory of 'jumping genes' was propounded by
A.
Grogor Johann Mendel
B.
Thomas Hunt Morgon
C.
Barbara McClintock
D.
Watson and Crick
ANSWER :
C. Barbara McClintock
16.
If a mouse of over eight times its normal size has been produced by introducing human growth hormone gene, the technique involved is called
A.
Hybridisation
B.
Genetic engineering
C.
Mutation breeding
D.
Hormonal feeding
ANSWER :
B. Genetic engineering
17.

Given below are two statements, one labelled as Assertion(A) and the other labelled as Reason( R).

Assertion(A) : A lock of Einstein's hair, if scientists could locate it and extract its DNA, could help in producing another Einstein by cloning

Reason( R): The DNA extracted from the cell of an embryo at an early state of development, can be transferred to individual eggs which in turn can be implanted into the uterus of a surrogate mother to give birth to an identical off pring.

In the context of the above two statements, which one of the following is correct?

A.

Both A and R are trure and R is the correct explantion of A

B.

Both A and R are trure but R is not correct explantion of A

C.

A is true but R is false

D.

A is false, but R is true

ANSWER :

C. A is true but R is false

18.
The grafting done between two genating identical talins is called
A.
Xenograft
B.
Isograft
C.
Autograft
D.
Allograft
ANSWER :
B. Isograft