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What is the replacement nitrogen base in RNA?

What is the replacement nitrogen base in RNA?

RNA is a polymer with a ribose and phosphate backbone and four different bases: adenine, guanine, cytosine, and uracil. The first three are the same as those found in DNA, but in RNA thymine is replaced by uracil as the base complementary to adenine. This base is also a pyrimidine and is very similar to thymine.

Is RNA thymine is replaced by?

DNA (top) includes thymine (red); in RNA (bottom), thymine is replaced with uracil (yellow).

What type of nucleobase replaces thymine in RNA?

Thymine is also known as 5-methyluracil, a pyrimidine nucleobase. In RNA, thymine is replaced by the nucleobase uracil.

Which of the given nitrogenous base will pair with adenine base in RNA?

Answer: Adenine is always paired with thymine, and guanine is always paired with cytosine. These are known as base pairs. Adenine forms two hydrogen bonds with thymine in DNA and two hydrogen bonds with uracil in RNA, while three hydrogen bonds are formed between guanine and cytosine.

Which nitrogen base is not there in RNA?


Which nitrogen base is never found in RNA?

So the correct answer is ‘Uracil’.

Which purine base is found in RNA?

The most important biological substituted purines are adenine and guanine, which are the major purine bases found in RNA and DNA.

What is the complementary base pair of thymine?

either of the nucleotide bases linked by a hydrogen bond on opposite strands of DNA or double-stranded RNA: guanine is the complementary base of cytosine, and adenine is the complementary base of thymine in DNA and of uracil in RNA.

Does uracil replace thymine?

Uracil is a nucleotide, much like adenine, guanine, thymine, and cytosine, which are the building blocks of DNA, except uracil replaces thymine in RNA. So uracil is the nucleotide that is found almost exclusively in RNA.

What type of base is thymine?

Thymine is one of the pyrimidine bases found in the nucleic acid of deoxyribonucleic acid (DNA), along with adenine, guanine, and cytosine (A, G, and C, respectively). These bases are the building blocks of DNA and all life forms on earth.

Which RNA base bonds with cytosine?

Adenine always binds with thymine, and cytosine always binds with guanine.

What is purine and pyrimidine bases?

Purines and pyrimidines are the nitrogen bases that hold DNA strands together through hydrogen bonds. The purines in DNA are adenine and guanine, the same as in RNA. The pyrimidines in DNA are cytosine and thymine; in RNA, they are cytosine and uracil.