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7 questions · 2000 · answers as per the UPSC key

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All years of Biotechnology & Genetics · Full UPSC 2000 paper
UPSC 2000 · Q115 · Science & Technology › Biotechnology & Genetics · Save

Which one of the following organisms can serve as a biofertilizer for rice crop?

(a) Blue-green algae
(b) Rhizobium sp
(c) Mycorrhizal fungi
(d) Azotobacter sp
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Answer: (a) Blue-green algae
UPSC 2000 · Q119 · Science & Technology › Biotechnology & Genetics · Save

Phytotron is a facility to

(a) grow plants under disease-free conditions
(b) conserve endangered species of plants
(c) grow plants under controlled conditions
(d) induce mutations
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Answer: (c) grow plants under controlled conditions
UPSC 2000 · Q121 · Science & Technology › Biotechnology & Genetics · Save

Insect resistant cotton plants have been genetically engineered by inserting a gene from a/an

(a) virus
(b) bacterium
(c) insect
(d) plant
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Answer: (b) bacterium
UPSC 2000 · Q122 · Science & Technology › Biotechnology & Genetics · Save

Hybridoma technology is a new biotechnological approach for commercial production of

(a) monoclonal antibodies
(b) interferon
(c) antibodies
(d) alcohol
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Answer: (a) monoclonal antibodies
UPSC 2000 · Q125 · Science & Technology › Biotechnology & Genetics · Save

Canola refers to special type of oil seed mustard varieties bred for human consumption. The main characteristic of these varieties is that the

(a) seeds have very high oil content
(b) oil is rich in unsaturated fatty acids
(c) oil has long shelf life
(d) oil has very low Erucic acid content
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Answer: (d) oil has very low Erucic acid content
UPSC 2000 · Q127 · Science & Technology › Biotechnology & Genetics · Save

Assertion (A): In human beings, the females play a major role in determining the sex of the offspring.

Reason (R): Women have two ‘X’ chromosomes.

(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is not a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
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Answer: (d) A is false, but R is true
UPSC 2000 · Q128 · Science & Technology › Biotechnology & Genetics · Save

Assertion (A): “DNA Finger-printing” has become a powerful tool to establish paternity and identity of criminals in rape and assault cases.

Reason (R): Trace evidences such as hairs, saliva and dried semen are adequate for DNA analysis.

(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is not a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
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Answer: (a) Both A and R are true, and R is the correct explanation of A