set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

The unit of heredity in our body is called

a) DNA

b) Chromosome

c) Gene

d) Nucleus

Question : 2

Hereditary symptoms are moved in the descendant of creatures by

a) Chromosome

b) Ribosome

c) Plasma

d) Lysosome

Question : 3

Genome mapping relates to

a) Mapping of genes

b) Blood grouping

c) Mapping of nerve centres

d) Mapping of brain

Question : 4

Who delivered the principle of ‘jumping gene’?

a) Tomas Hunt Morgan

b) Gregor Johann Mendel

c) Barbara Mc Clintock

d) Watson and Crick

Question : 5

The sugar present in DNA is

a) Fructose

b) Glucose

c) Deoxyribose

d) Ribose

Question : 6

Which of the following professional(s) are more likely to run the risk of a permanent change in their cell’s DNA?

1. Researchers using carbon 14 isotope
2. X-ray technician
3. Coal miner
4. Dyer and painter

a) 1, 2 and 3

b) Only 2

c) 1, 2 and 4

d) 1, 3 and 4