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Which one is wrongly matched? (i) adenine, thymine-Purines (ii) thymine, uracil-Pyrimidines (iii) uracil, cytosine-Pyrimidines (iv) guanine, adenine-Purines

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Question

Which one is wrongly matched?

Options

  • adenine, thymine—Purines

  • thymine, uracil—Pyrimidines

  • uracil, cytosine—Pyrimidines

  • guanine, adenine—Purines

MCQ
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Solution

Adenine, thymine—Purines

Explanation:

Adenine is a purine, but thymine is a pyrimidine, so that pair is wrongly matched. The other listed base classifications are correct.

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Chapter 7: Molecular Basis of Inheritance - EXERCISES [Page 408]

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Sarita Aggarwal Biology [English] Class 12 ISC
Chapter 7 Molecular Basis of Inheritance
EXERCISES | Q I. 46. | Page 408
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