set 3 MCQ Questions & Answers Detailed Explanation

Question : 1

Among living organisms, which one of the following is the most responsible factor for bringing about the origin of a new species?

a) Natural selection

b) Isolation

c) Mutation

d) Sexual reproduction

Question : 2

Which of the facts about Dolly (sheep), the first mammal cloned from an adult somatic cell is not correct?

a) Dolly was born in the year 1998

b) Dolly died in the year 2003

c) Dolly died due to lung disease

d) Dolly was born in Scotland

Question : 3

In gene therapy, to correct the functioning of a faulty gene

a) Defective gene is stopped from working

b) Bad gene is eleminated

c) Another good gene is inserted

d) The whole bad gene is replaced by a good gene

Question : 4

Consider the following kinds of organisms.

1. Bacteria
2. Fungi
3. Flowering plants

a) 1 and 3

b) Only 1

c) 2 and 3

d) 1, 2 and 3

Question : 5

Gene is made of which chemical

a) protein

b) D.N.A.

c) R.N.A.

d) enzyme

Question : 6

DNA fingerprinting is used in the following area(s).

a) Conservation of endangered living being only

b) Forensic cases only

c) Paternity dispute only

d) All of the above