A complete turn of the double helix of DNA comprises of:
Correct answer: C. 3.4 nanometer
- A. 34 nanometer
- B. 3.4 Angstrom
- C. 3.4 nanometer
- D. 34 micrometers
Explanation
At a distance of 3.4nm, the double helix DNA produces one full turn. Each full turn of DNA consists of 10 base pairs. Pitch is the term for the distance covered by a DNA molecule in one full turn.
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About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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