(a) Complementary base pairing
(b) 5' phosphoryl and 3' hydroxyl ends
(c) Heterocyclic nitrogenous bases
(d) Chargaff's rule
[CBSE AIPMT 2015]
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Aug 09, 2021
· Edited: Aug 09, 2021Which one of the following is not applicable to RNA?
Which one of the following is not applicable to RNA?
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Correct Option (d) Reason : Chargaff's rule is not applicable to RNA. He is the generalisations formulated about DNA structure. The rule states that DNA from any cell of all organisms should have a 1 : 1 ratio (base pair rule) of pyrimidine and purine bases, i.e. the amount of guanine is equal to cytosine and the amount of adenine is equal to thymine. Further complementary base pairing is sometimes, visible in RNA as well (in doubled stranded RNAs of viruses) hence option (a) is not taken into consideration.