What are the 4 sugars in DNA?
What are the 4 sugars in DNA?
DNA consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases–adenine (A), cytosine (C), guanine (G), or thymine (T).
What are the 5 sugars in DNA?
Nucleotides a. Pentose sugars – 5-Carbon sugar 1) Deoxyribose – in DNA 2) Ribose – in RNA b. Phosphate group c. Nitrogenous bases 1) Purines a) Adenine b) Guanine 2) Pyrimidines a) Cytosine b) Thymine 2.
How many different kinds of sugars are present in DNA?
The DNA molecule is a polymer of nucleotides. Each nucleotide is composed of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group. There are four nitrogenous bases in DNA, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine).
What are the 2 types of sugars found in nucleic acids?
The natural nucleic acids are the two known types: ribonucleic acid (RNA) and DNA. The pentose sugar in RNA is ribose while DNA contains deoxyribose. The other difference is found in the nitrogenous base component.
Where are the sugars in DNA?
DNA and RNA are composed of nucleotides that are linked to one another in a chain by chemical bonds, called ester bonds, between the sugar base of one nucleotide and the phosphate group of the adjacent nucleotide. The sugar is the 3′ end, and the phosphate is the 5′ end of each nucleiotide.
What type of sugar is in RNA?
Unlike DNA, RNA is usually single-stranded. Additionally, RNA contains ribose sugars rather than deoxyribose sugars, which makes RNA more unstable and more prone to degradation. RNA is synthesized from DNA by an enzyme known as RNA polymerase during a process called transcription.
Is 5 carbon sugar DNA or RNA?
The five-carbon sugar in DNA is called deoxyribose, while in RNA, the sugar is ribose.
What is difference between ribose and deoxyribose?
Ribose and deoxyribose are monosaccharides or simple sugars….Deoxyribose vs Ribose.
| Deoxyribose | Ribose |
|---|---|
| 2-deoxy-D-ribose | (2S,3R,4S,5R)-5-(hydroxymethyl)oxolane-2,3,4-triol |
| Structure | |
| It has a hydroxyl (OH) group at position 2 | It has a hydrogen (H) atom at position 2 |
| Molar mass |
Which sugar is present in RNA?
ribose
ribose, also called D-ribose, five-carbon sugar found in RNA (ribonucleic acid), where it alternates with phosphate groups to form the “backbone” of the RNA polymer and binds to nitrogenous bases.
What is pentose sugar in DNA?
The pentose sugar in DNA is called deoxyribose, and in RNA, the sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the 2′ carbon of the ribose and its absence on the 2′ carbon of the deoxyribose.
What is the DNA and RNA of type of sugar?
There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
What is deoxyribose sugar?
deoxyribose, also called d-2-deoxyribose, five-carbon sugar component of DNA (q.v.; deoxyribonucleic acid), where it alternates with phosphate groups to form the “backbone” of the DNA polymer and binds to nitrogenous bases.