genetic engineering and bio technology - Category wise Question and Answer Practice Test with Solutions

Question : 26

First transgenic plant –

a) Tobacco

b) Potato

c) Tomato

d) Maize

Question : 27 [PSC (Pre) 2019]

Sexual reproduction causes genetic variation because of

a) Shuffling of genes

b) Blending of genes

c) Chromosomal changes

d) All of the above

Question : 28 [PSC (Pre) 2018]

Assertion (A):
Dolly was the first cloned mammal.
Reason (R):
Dolly was produced by in-vitro fertilization.

a) (A) is true, but (R) is false

b) Both (A) and (R) are true and (R) is the correct explanation of (A)

c) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

d) (A) is false, but (R) is true

Question : 29 [IAS (Pre) 2013]

Recombinant DNA Technology (Genetic Engineering) allows genes to be transferred.

1. Across different species of plants.
2. From animals to plants.
3. From micro-organisms to higher organisms.

a) 1 and 3

b) Only 1

c) 2 and 3

d) All of these

Question : 30 [SSC]

Number of chromosome in a normal human body cell is

a) 45

b) 43

c) 44

d) 46