Question

What DNA is present in humans?

Answer 1

DNA in humans:

1. In humans, two types of DNA are present. One is mitochondrial DNA, and another is nuclear DNA.
2. B-DNA is present in humans. It features a right-handed double-helical structure.
3. This type of DNA is a right-handed double helix commonly seen under standard physiological settings.
4. This DNA's two strands flow in opposite directions.
5. They have an uneven structure, with primary and minor grooves alternately present. It occurs due to a base pair's glycosidic bonds not being opposed to one another.
6. There is a spacing of 0.34 nm between neighboring deoxyribonucleotides, and each turn consists of 10.5 base pairs of length 3.4 nm.
7. B-DNA has a winding width of 2 nm and a backbone composed of sugar phosphates linked together constantly by phosphodiester linkages. Nitrogenous bases make up the core.