set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

Consider the following effects of genetic engineering.

1. Disease resistance
2. Growth promotion
3. Animal cloning
4. Human cloning

a) 1, 2 and 4

b) 1, 3 and 4

c) 2, 3 and 4

d) 1, 2 and 3

Question : 2

With reference to ‘stem cells’, frequently in the news, which of the following statement(s) is/are correct?

1. Stem cells can be derived from mammals only.
2. Stem cells can be used for screening new drugs.
3. Stem cells can be used for medical therapies.

a) Only 3

b) 1 and 2

c) 2 and 3

d) 1, 2 and 3

Question : 3

Which of the following features of DNA makes it uniquely suited to store and transmit genetic information from generation-togeneration?

a) Number of base-pairs per turn

b) Complementary to the two strands

c) Double helix

d) Sugar-phosphate backbone

Question : 4

Haemophilia is a genetic disorder which lead to

a) decrease in WBC

b) decrease in hamemoglobin level

c) rheumatic heart disease

d) non-clotting of blood

Question : 5

When one gene controls two or more different characters simultaneously, the phenomenon is called

a) Polyploidy

b) Apomixis

c) Pleiotropy

d) Polyteny

Question : 6

Genetics is the study of –

a) Only plants

b) Inheritance

c) Cell structure

d) Only animals