BIOLOGY
STRUCTURE OF NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the ability to bond with adenine
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the ability to bond with thymine
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the ability to bond with cyotsine
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the ability to bond with guanine
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Detailed explanation-1: -In RNA, uracil binds to adenine via two hydrogen bonds. In DNA, the uracil nucleobase is replaced by thymine (T). Uracil is a demethylated form of thymine.
Detailed explanation-2: -Description. Uracil is a common and naturally occurring pyrimidine nucleobase in which the pyrimidine ring is substituted with two oxo groups at positions 2 and 4. Found in RNA, it base pairs with adenine and replaces thymine during DNA transcription.
Detailed explanation-3: -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-4: -It is important to note that in RNA (RiboNucleic Acid), adenine pairs with uracil because RNA molecules do not contain any thymine. The shape of the uracil molecule is very similar to thymine; the only difference is that uracil (formula C4H4N2O2 C 4 H 4 N 2 O 2 ) is missing a methyl group (-CH3 C H 3 ).
Detailed explanation-5: -Adenine-uracil base pairs, or AU base pairs, are held together by 2 hydrogen bonds. Guanine-cytosine base pairs, or GC base pairs, are held together by 3 hydrogen bonds. The hydrogen bond donors and acceptors are labeled on the bases. The hydrogen bond donors are all NH groups.