set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

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

a) Cystic fibrosis

b) Royal haemophilia

c) Tay-Sachs disease

d) Hypertension

Question : 2

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

Question : 3

If a rat is created by using human growth gene, which is eight times bigger than normal rat; then this technique will be said as

a) Mutation reproduction

b) Cross-breeding

c) Hereditary engineering

d) Hormony nourshing

Question : 4

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 : 5

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 : 6

The cells which have the capacity to divide and differentiate into any type of cells in the body are the focus of research of several serious diseases are

a) Mesangial cells

b) Bud cells

c) Red cells

d) Stem cells