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There are four bases in a DNA "ladder"... It is called a ladder because of the "two sides" and the bases... In DNA replication, they obviously replicate and the two sides are replicated as are the bases. (A,T,C,G)
Base Pair
between the nitrogen bases of the two strands of DNA
The two bases that are present in equal amounts in a double stranded DNA molecule are cytosine and guanine. Cytosine pairs with guanine in A DNA molecule.
two nitrogenous bases linked together in the middle
The two chains are connected by hydrogen bonding between nitrogen bases to form a long double-stranded molecule.So hydrogen bonding determines which nitrogen bases form pairs of DNA.
The DNA molecule is composed of two DNA strands.
A double helix of two strands of DNA linked together with sugar-phosphate backbones with bases on the inside.
Enzymes split the DNA molecule into two rails and then transport corresponding nitrogen bases to each rail.
A double helix of two strands of DNA linked together with sugar-phosphate backbones with bases on the inside.
The nitrogen bases make up the center of the two strands of a DNA molecule.
The two strands of DNA are linked together by hydrogen bonds which occur between the nitrogen bases opposite one another along the molecule.