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What are the nitrogenous bases in DNA and how do you know whether there are two bonds or three?
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∙ 12y ago
Adenine thymine cytosine guanine
Wiki User
∙ 12y ago
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What is contained in nucleic acids?
Nucleic acids are polynucleotides. They are composed of nucleotides, which join together through phospho-diester bonds, with forms the sugar-phosphate backbone of the nucleic acid, and also through hydrogen bonds, between two complementary nitrogenous bases (in the case of DNA).The nucleotides which make up nucleic acids are composed of the following: a phosphate group (PO4), a deoxyribose sugar (in DNA) or a ribose sugar (in RNA) and finally a nitrogenous base. In DNA the purine nitrogenous bases are: adenine and guanine. The pyrimidine nitrogenous bases are: thymine (which bonds with two hydrogen bonds to adenine) and cytosine (which bonds with guanine through three hydrogen bonds. In RNA uracil replaces thymine and there are no hydrogen bonds between the nitrogenous bases as RNA is a single stranded molecule.
Which macromolecule has a sugar-phosphate backbone?
Nucleic acids DNA and RNADNA has deoxyribose and phosphate forming the backbone and an attached nitrogenous base, These three components form a nucleotide.RNA has ribose sugar, phosphate and nitrogenous bases. The bonds holding the macromolecule together are covalent bonds within the nucleotides and hydrogen bonds holding the double strands of the DNA molecule.
Each set of three nitrogenous bases representing an amino acid is referred to as a?
Codon
What two bases form three hydrogen bonds?
cytosine and guanine form three hydrogen bonds between them
Is the condon the sequence of the three nitrogenous bases in the DNA template that signal the beginning of a gene?
That would be a start codon.
What is contained in nucleic acids?
Nucleic acids are polynucleotides. They are composed of nucleotides, which join together through phospho-diester bonds, with forms the sugar-phosphate backbone of the nucleic acid, and also through hydrogen bonds, between two complementary nitrogenous bases (in the case of DNA).The nucleotides which make up nucleic acids are composed of the following: a phosphate group (PO4), a deoxyribose sugar (in DNA) or a ribose sugar (in RNA) and finally a nitrogenous base. In DNA the purine nitrogenous bases are: adenine and guanine. The pyrimidine nitrogenous bases are: thymine (which bonds with two hydrogen bonds to adenine) and cytosine (which bonds with guanine through three hydrogen bonds. In RNA uracil replaces thymine and there are no hydrogen bonds between the nitrogenous bases as RNA is a single stranded molecule.
What is in the bonding of nitrogenous bases?
The bases from one strand form hydrogen bonds with the bases on the other strand. Adenine forms two H-bonds with thymine. Cytosine forms three H-bonds with guanine.
How many nitrogen bases make-up a codon?
Three nitrogenous bases make up a single codon.
Which macromolecule has a sugar-phosphate backbone?
Nucleic acids DNA and RNADNA has deoxyribose and phosphate forming the backbone and an attached nitrogenous base, These three components form a nucleotide.RNA has ribose sugar, phosphate and nitrogenous bases. The bonds holding the macromolecule together are covalent bonds within the nucleotides and hydrogen bonds holding the double strands of the DNA molecule.
Nitrogeneous base belonging to the pyrimidine group?
A pyrimidine group consists of only three nitrogenous bases: Uracil, Thymine, and Cytosine. All three are nitrogenous bases, so all three are the answer.
Each set of three nitrogenous bases representing an amino acid is referred to as a?
Codon
Each set of three nitrogenous bases representing an amino acid is referred to as an?
codon
How many nitrogenous bases are found in a anticodon?
3. The opposite three that are located on the codon of an mRNA strand.eg.If mRNA reads CAG UCG AGU Three codonsThen tRNA GUC AGC UCA Three Antiocodons each containing three nitrogenous bases.
What are the three components of s nucleotide?
1. Phosphate 2. Sugar 3. Nitrogenous bases
How many nitrogen base are in a codon?
AUG Start codon containing three nitrogenous bases.
In the genetic code a group of three nitrogen bases codes for the attachment of a specific?
Three consecutive nitrogenous bases are called a codon and codons code for amino acids
What type of bonds form between the nitrogenous bases of a DNA molecule?
A hydrogen bond--two between A and T and three between G and C.
