Which of the following statements about histones is not true?

Histones are very similar between species

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Histones have many basic amino acids

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Histones are rich in lysine and arginine

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Each histone has one single gene that codes for it

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Solution

The correct option is C Each histone has one single gene that codes for it
The histone proteins are composed of basic amino acids which show homology in a certain species. These proteins are rich in lysine and arginine amino acid residues. These proteins attach to the DNA to form the nucleosome and then the structure of the chromosome is formed. There is more than one gene which codes for the histone protein. There are two H2A and one H2B gene in the haploid genome.
Thus, the correct answer is option D.

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