set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

Which of the following statement is incorrect regarding PCR?

a) Taq DNA polymerase is not thermostable.

b) In PCR, two primers are used.

c) Taq DNA polymerase is related for PCR.

d) Multiple copies of gene can be synthesized in PCR.

Question : 2

The sex of the child in humans primarily depends on

a) X and Y chromosome of male part

b) X chromosome of female part

c) Both (a) & (b)

d) None of the two

Question : 3

Which one was the first successful cloned animal?

a) Rabbit

b) Sheep

c) Gibbon

d) None of these

Question : 4

With reference to ‘stem cells’, frequently in the news, which of the following statement(s) is/are correct?

1. Stem cells can be derived from mammals only.
2. Stem cells can be used for screening new drugs.
3. Stem cells can be used for medical therapies.

a) Only 3

b) 1 and 2

c) 2 and 3

d) 1, 2 and 3

Question : 5

Consider the following effects of genetic engineering.

1. Disease resistance
2. Growth promotion
3. Animal cloning
4. Human cloning

a) 1, 2 and 4

b) 1, 3 and 4

c) 2, 3 and 4

d) 1, 2 and 3

Question : 6

Which one of the following statements is correct ? Cretinism is a human disorder which is due to the under secretion of :

a) Glucagon hormone

b) Adrenalin hormone

c) Cortisone hormone

d) Thyroxin hormone