If an α-helix of a polypeptide consist of 360 amino acids, how many turns does the helix contain?
Correct answer: B. 100 turns
- A. 3.6 turns
- B. 100 turns
- C. 360 turns
- D. The number of turns can not be determind
Explanation
An alpha(α) helix contains 3.6 amino acids per turn of the helix. If a polypeptide consists of 360 amino acids, the turns in the helix would be 100. 360÷3.6=100 amino acids.
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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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