In drawings of DNA the lines connecting the two strands represent base pairings. DNA is made up of four base pairs. These four pair up A-T and C-G exclusively.
it explains the base pairing and how the two strands are held together
The A and T pairs are connected with two hydrogen bonds, C and G pairs are connected with 3 hydrogen bonds.
It represents the nitrogen base pairs.
hydrogen bonds between nucleotide bases
RNA Primer
2 strands in total I believe.
A DNA nucleotide is composed of the 5-carbon sugar deoxyribose, a phosphate group, and one of four nitrogen bases; adenine (A), thymine (T), cytosine (C), and quanine (G). A molecule of DNA is composed of two strands of nucleotides. The nucleotide strands are oriented such that the sugar and phosphate groups alternate down the outside of the strand, and the nitrogen bases are oriented toward the center of the two strands. In a DNA molecule, the two strands of nucleotides pair according to the base-pairing rule, which states that adenine pairs with thymine (A-T), and cytosine pairs with guanine (C-G). The nitrogen bases of the complimentary strands of DNA are held together by hydrogen bonds. Because of the 3-D structure of the nucleotides, the two DNA strands twist into a double helix, often likened to a twisted ladder. Refer to related links for illustrations.
DNA is composed of two strands of DNA nucleotides.
a nucleotide
Thousands upon thousands. Because DNA must contain all the characteristics of your being, it must be long.
Hydrogen bonding of nucleotide across to nucleotide.
a nucleotide
Their unique SEQUENCE of nucleotide BASES accomplishes this Functional Property in Dna strands.
dna strands
individual nucleotides make up the long strands of DNA.
The two strands of DNA are connected by hydrogen bonds.
hydrogen bonds between nucleotide bases
RNA Primer
spirally
Either two or three, depending on the exact nucleotide. Three in G-C, two in A-T.