Twisted structure of DNA:
- The backbone alternates deoxyribose and phosphate strands in the DNA.
- It twists in response to bonding between two strands.
- This occurs as a result of DNA's spatial requirement.
- The protein histones that allow it to coil and supercoil.
- The AT bond has two hydrogen bonds, whereas the GC bond has three hydrogen bonds.
- If the nucleus unfolded uncoiled, more DNA is unable to present in the nucleus.
- The twisted motif gives DNA stability.
- Hence it is in a twisted form.