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Cytosine’s complementary base in the DNA molecule is guanine. Cytidine is a structural subunit of ribonucleic acid that consists of cytosine and the sugar ribose. Cytidine triphosphate (CTP), an ester of cytidine and triphosphoric acid, is the substance utilized in the cells to introduce cytidylic acid units into ribonucleic acids.
In nucleic acid, nucleobases are held together by hydrogen bonding, which only works efficiently between adenine and thymine and between guanine and cytosine. The base complement A = T shares two hydrogen bonds, while the base pair G ≡ C has three hydrogen bonds.
7 Μαρ 2024 · Complementary base pairing plays a crucial role in the structure and function of DNA. It refers to the specific hydrogen bonding between adenine (A) and thymine (T), as well as guanine (G) and cytosine (C). This pairing ensures the accurate replication and expression of genetic information.
15 Μαΐ 2022 · The rules of base pairing explain the phenomenon that whatever the amount of adenine (A) in the DNA of an organism, the amount of thymine (T) is the same (called Chargaff's rule). Similarly, whatever the amount of guanine (G), the amount of cytosine (C) is the same.
In other words, adenine and thymine are complementary base pairs, and cytosine and guanine are also complementary base pairs. This is the basis for Chargaff’s rule; because of their complementarity, there is as much adenine as thymine in a DNA molecule and as much guanine as cytosine.
What is the complementary base to cytosine in DNA? Flexi Says: The nitrogen bases in a nucleic acid stick out from the backbone. There are four different types of bases: cytosine (C), adenine (A), guanine (G), and either thymine (T) in DNA, or uracil (U) in RNA.
5 Μαρ 2024 · Cytosine plays a crucial role in genetic coding and the transmission of genetic information. It is a pyrimidine base that forms complementary base pairs with guanine, helping to maintain the structure of the double helix in DNA.
