Though both rna and dna contain the nitrogenous bases adenine, guanine and cytosine, rna contains the nitrogenous base uracil instead of thymine There are only five different nitrogenous bases found in all nucleic acids Uracil pairs with adenine in rna, just as thymine pairs with adenine in dna
Structure Rna Ribonucleic Acid Nitrogenous Base Stock Vector (Royalty Free) 2228325599
Uracil and thymine have very similar structures
Uracil is an unmethylated form of thymine.
In the context of nucleic acids, such as dna and rna, there are specific nitrogenous bases that play crucial roles in genetic coding and functioning The question asks for a base that is found only in rna. This is a key difference between the two types of nucleic acids Recognize the role of uracil
Uracil pairs with adenine in rna, similar to how thymine pairs with adenine in dna Based on the comparison, uracil is the nitrogenous base found only in rna, distinguishing it from dna. Ribose has a hydroxyl group at the 2′ carbon, unlike deoxyribose, which has only a hydrogen atom (figure 4) The difference between the ribose found in rna and the deoxyribose found in dna is that ribose has a hydroxyl group at the 2′ carbon rna nucleotides contain the nitrogenous bases adenine, cytosine, and guanine.
The nitrogen containing base that is found only in rna is uracil
It takes the place of thymine in dna The only variation in each nucleotide is the identity of the nitrogenous base The figure above shows one example of a nitrogenous base, called adenine
