0
The pair of nitrogenous bases that connects the complementary strands of DNA or of double-stranded RNA and consists of a purine linked by hydrogen bonds to a pyrimidine: adenine-thymine and guanine-cytosine in DNA, and adenine-uracil and guanine-cytosine in RNA.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is thymine in DNA?
Thymine is a nitrogenous base. It pairs with Adenine.
What is the definition of guanine?
Guanine is a nitrogenous base that pairs with Cytosine in DNA and RNA.
How do nitrogen bases form together?
Hydrogen bonds hold the nitrogenous base pairs together.
What three things does a nucleotide contain?
5 carbon sugar, phosphate group, nitrogenous base
Cytosine is the DNA base that bonds to adenine?
The nitrogenous base, Cytosine, pairs with the nitrogenous base, Guanine.In DNA:Cytosine - GuanineAdenine - ThymineIn RNA:Cytosine - GuanineAdenine - Uracil
Adenine complements with what in DNA RNA?
In DNA: Adenine base pairs with Thyamine A=T In RNA: Adenine base pairs with Uracil A=U
Which is a singled-ringed nitrogenous base?
Thymine is a single-ringed nitrogenous base.
Which is a single-ringed nitrogenous base.?
Thymine is a single-ringed nitrogenous base.
Which is a single -ringed nitrogenous base?
Thymine is a single-ringed nitrogenous base.
Which is a single-ringed nitrogenous base?
Thymine is a single-ringed nitrogenous base.
Why does the DNA helix have a pitch of 3.4 and why are there exactly 10 pairs of nucleotides in it?
The pitch of the DNA helix, or the distance between its complete turns, is 3.4 angstroms (Å) because of the specific arrangement of its nucleotides. The DNA helix is made up of two complementary strands of nucleotides, and each nucleotide consists of a sugar molecule, a phosphate group, and a nitrogenous base. In a DNA molecule, the two complementary strands are held together by hydrogen bonds between the nitrogenous bases of the nucleotides. The distance between the nitrogenous bases determines the pitch of the helix. In the case of DNA, the nitrogenous bases are adenine (A), cytosine (C), guanine (G), and thymine (T). The distance between the nitrogenous bases of A-T and C-G base pairs is 3.4 Å. As for why there are exactly 10 pairs of nucleotides in the DNA helix, this is a generalization and not a strict rule. The number of nucleotide base pairs in a DNA molecule can vary widely, depending on the species and the type of cell. For example, the human genome has approximately 3 billion base pairs, while the genome of a bacterium may have only a few million base pairs. The number of base pairs in a DNA helix can also vary within a single chromosome or even within a single gene. In summary, the pitch of the DNA helix is determined by the distance between its nitrogenous bases, and the number of nucleotide base pairs can vary widely depending on the species and type of cell.
What is pairing arrangement of nitrogenous bases?
Adenine pairs with thymine, and cytosine pairs with guanine.
