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Which of the following represents a difference between RNA and DNA?
a
none of these are correct
b
DNA contains the base thymine and RNA contains the base uracil
c
RNA contains the sugar deoxyribose and DNA contains the sugar ribose
d
DNA is single stranded and RNA is double stranded

Answer :

B.) DNA contains the base thymine and RNA contains the base uracil

[ The 4th nitrogenous base is Thymine in the DNA but it is "Uracil" in the case of RNA which pairs with Adenine ]

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