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4 questions · 1999 · answers as per the UPSC key

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UPSC 1999 · Q111 · Science & Technology › Biotechnology & Genetics · Save

Indian farmers are unhappy over the introduction of “Terminator Seed Technology” because the seeds produced by this technology are expected to

(a) show poor germination
(b) form low yielding plants despite the high quality
(c) give rise to sexually sterile plants
(d) give rise to plants incapable of forming viable seeds
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Answer: (d) give rise to plants incapable of forming viable seeds
UPSC 1999 · Q114 · Science & Technology › Biotechnology & Genetics · Save

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

(a) Royal haemophilia
(b) Tay Sachs disease
(c) Cystic fibrosis
(d) Hypertension
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Answer: (a) Royal haemophilia
UPSC 1999 · Q129 · Science & Technology › Biotechnology & Genetics · Save

Assertion (A): Insect-resistant transgenic cotton has been produced by inserting Bt gene.

Reason (R): The Bt gene is derived from a bacterium.

(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
UPSC 1999 · Q130 · Science & Technology › Biotechnology & Genetics · Save

Assertion (A): Dolly was the first cloned mammal.

Reason (R): Dolly was produced by in-vitro fertilization.

(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: (c) A is true, but R is false