What are the common parts of the nucleotide?
What are the common parts of the nucleotide?
A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T). In RNA, the base uracil (U) takes the place of thymine.
What are nucleosides give examples?
A nucleoside is any nucleotide that does not have a phosphate group but is bound to the 5′ carbon of the pentose sugar. Examples of nucleosides include cytidine, uridine, guanosine, inosine thymidine, and adenosine. A beta-glycosidic bond binds the 3′ position of the pentose sugar to the nitrogenous base.
Why is the sequence of nucleotides important?
The sequence of nucleotides forms the unique genetic information of an organism. Scientists use nucleotide sequences to determine evolutionary relationships among organisms, to determine whether two people are related, and to identify bodies of crime victims.
What does a nucleotide look like?
Figure 1: A single nucleotide contains a nitrogenous base (red), a deoxyribose sugar molecule (gray), and a phosphate group attached to the 5′ side of the sugar (indicated by light gray). Opposite to the 5′ side of the sugar molecule is the 3′ side (dark gray), which has a free hydroxyl group attached (not shown).
What are the 3 part of a nucleotide?
Each nucleotide, in turn, is made up of a nitrogenous base, a pentose sugar, and a phosphate.
What do nucleotides contain?
A molecule consisting of a nitrogen-containing base (adenine, guanine, thymine, or cytosine in DNA; adenine, guanine, uracil, or cytosine in RNA), a phosphate group, and a sugar (deoxyribose in DNA; ribose in RNA).
Why are nucleotides used for energy?
Nucleotides as Energy Source Nucleotides are needed for gene replication and transcription into RNA. They are also needed for energy. ATP, the body’s form of energy, is a nucleotide with adenine as its base. GTP is used in protein synthesis as well as a few other reactions.
What are nucleotides made of?