1.

Assertion : Sequence of bases in DNA is TGAACCCTT and sequence of bases in m-RNA is CATTAAACC. Reason: In DNA nitrogeneous bases have hydrogen bonds.

Answer»

If both assertion and reason are true and the reason is the correct explanation of the assertion.
If both assertion and reason are true but reason is not the corret explanation of the assertion.
If assertion is true but reason is false.
If the assertion and the reason both are false.

Solution :Sequence of bases in DNA is TGAACCTT. SINCE according to base-pairing principle, T in DNA faces A in m-RNA, while G faces C and a faces U. THEREFORE, sequence of bases in m-RNA is ACUUGGGAA.


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