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2 questions · 1996 · answers as per the UPSC key

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UPSC 1996 · Q100 · Science & Technology › Biotechnology & Genetics · Save

Which of the following professional(s) are more likely to run the risk of a permanent change in their cell’s DNA? I. Researchers using carbon-14 isotope II. X-ray technician III. Coal miner IV. Dyer and painter

Select the correct answer using the codes given below:

(a) II alone
(b) I, II and III
(c) I, II and IV
(d) I, III and IV
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Answer: (c) I, II and IV
UPSC 1996 · Q108 · Science & Technology › Biotechnology & Genetics · Save

It is possible to produce seedless tomato fruits by

(a) applying trace elements in tomato fields
(b) spraying mineral solution on plants
(c) spraying hormones on flowers
(d) applying fertilisers containing radioactive elements
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Answer: (c) spraying hormones on flowers