BIOLOGY
STRUCTURE OF PROTEINS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cytosine
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Adenine
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Thymine
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Uracil
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Detailed explanation-1: -Uracil is the nitrogenous base present only in RNA, but not in DNA. Thymine is in DNA. DNA have thymine, guanine, adenine and cytosine.
Detailed explanation-2: -Uracil is present in RNA but not in DNA.
Detailed explanation-3: -One of the most important differences between DNA and RNA apart from the sugar molecule is the nitrogenous base Uracil, which is seen only in RNA. Instead of Uracil, DNA has Thymine, while the other three nitrogenous bases (Adenine, Guanine, Cytosine) are the same in both RNA and DNA.
Detailed explanation-4: -Uracil (U) is one of the four nucleotide bases in RNA, with the other three being adenine (A), cytosine (C) and guanine (G). In RNA, uracil pairs with adenine. In a DNA molecule, the nucleotide thymine (T) is used in place of uracil.
Detailed explanation-5: -In RNA, the thymine is replaced by uracil (U).