Question

What are the different bands of dna? explain in detail.

Answer 1

hey your ans is.
The hydrogen bonding between complementary bases holds the two strands of DNA together. Hydrogen bonds are not chemical bonds. They can be easily disrupted. This permits the DNA strands to separate for transcription (copying DNA to RNA) and replication (copying DNA to DNA).
There are three bondings in a DNA…

Between the pentose sugar and the nitrogen base, it is called glycosidic bond…
Between the nitrogen bases, it is nothing but Hydrogen bond…
Between the sugar moiety and the phosphate molecule, which is called phosphodiester bond.

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Answer 2

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A well-defined “line” of DNA on a gel is called a band. Each band contains a large number of DNA fragments of the same size that have all traveled as a group to the same position. A single DNA fragment (or even a small group of DNA fragments) would not be visible by itself on a gel.