Image credit:Image by kjpargeter on Freepik
By Dr Tushar Chauhan October 18, 2022
Credit: Tenor.
Image credit: Wikipedia
Image credit: Wikipedia
The B-form DNA is double-stranded and right-handed DNA helix. The single turn consist of 10 bases with a diameter of 20Å.
Image credit: WangXiNa on Freepik.
Interestingly, the chemical structure demonstrated by Watson and Crick was the B-form DNA. It is the most prevalent form.
Image credit: WangXiNa on Freepik.
A-form DNA is also a right-handed DNA helix. It consists of 11 bases per turn with a diameter of 23Å. It is the second most common form of DNA after the B form.
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Z-form DNA is a left-handed DNA helix. It consists of 12 bases per turn with a diameter of 18Å.
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C-form DNA is a right-handed DNA helix and is less prevalent. It consists of 9.33 bases per turn with a diameter of 19Å.
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D-form DNA is a right-handed DNA helix and is very rare in nature. It consists of 8 bases per helix turn.
Image Credit: Alexander Antropov from Pixabay.
E- form DNA contains 7.5 bases per helix turn and is very rare. Fewer research data is available on E-form DNA.
Image credit: Alexander Antropov from Pixabay.