DNA exists in different helical conformations (A, B, C, Z, etc.) depending on environmental conditions (humidity, salt concentration) and the DNA sequence. The B-form is the most prevalent under physiological conditions. The number of base pairs per turn is a key characteristic differentiating these forms: B-form (~10.5 bp/turn), A-form (11 bp/turn), and Z-form (12 bp/turn).
Double helical DNA that has 12 base pairs per turn is related to
Asked in Agri. Officer 2020 · Topic: Cell (Nucleus: Nuclear Envelope, Chromatin, Nucleolus, and Functions)
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