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

Question : 26 [PSC (Pre) 2016]

Steps of Recombinant DNA technology are given below.

1. Identification and isolation of the genetic material.
2. Fragmentation of DNA.
3. Obtaining the foreign gene product.
4. Downstream processing.
5. Ligation of DNA fragmentation into the vector.
6. Isolation of desired DNA fragments.
7. Amplification of gene of interest.
8. Transfer of Recombinant DNA into the host cell/organism.

a) 1 → 2 → 6 → 7 → 5 → 8 → 3 → 4

b) 3 → 1 → 2 → 4 → 6 → 5 → 7 → 8

c) 1 → 4 → 3 → 2 → 5 → 7 → 6 → 8

d) 8 → 6 → 7 → 5 → 1 → 4 → 2 → 3

Question : 27 [MPPCS (Pre) 1994]

Who first outlined the structure of the life molecule (D.N.A.)?

a) Dr. James Watson and Dr. Francis Crick

b) Dr. Maghnath Saha

c) Dr. Stephan Hawking

d) Dr. Alexander Fleming

Question : 28

The bacteria generally used for genetic engineering is

a) Pseudomonas

b) Agrobacterium

c) Bacillus

d) Clostridium

Question : 29 [IAS Prelim]

Which one of the following genetic diseases is sex-linked?

a) Cystic fibrosis

b) Royal haemophilia

c) Tay-Sachs disease

d) Hypertension

Question : 30

In human beings, a recessive gene can express it in homozygous condition as in

a) X-Chromosome of females

b) Autosome

c) X-chromosome of male

d) An autosome or X-Chromosome