OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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single stranded
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double stranded
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ribose sugar
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deoxyribose sugar
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uracil
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Detailed explanation-1: -Properties. In RNA, uracil base-pairs with adenine and replaces thymine during DNA transcription. Methylation of uracil produces thymine. In DNA, the evolutionary substitution of thymine for uracil may have increased DNA stability and improved the efficiency of DNA replication (discussed below).
Detailed explanation-2: -It is made up of nucleotides, which are ribose sugars attached to nitrogenous bases and phosphate groups. The nitrogenous bases include adenine, guanine, uracil, and cytosine. RNA mostly exists in the single-stranded form, but there are special RNA viruses that are double-stranded.
Detailed explanation-3: -Answer and Explanation: YES, messenger RNA (mRNA) contains uracil as one of its nucleotide bases. Uracil pairs with adenine in the genome of all RNA sequences.