Histone genes possess

A lot of pseudogenes

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Repeated genes

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Pseudoalleles

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Repeated sequences.

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Solution

The correct option is B Repeated genes
The basic unit of chromosomes, the nucleosome, is composed of 146 bp of DNA coiled around a histone octamer, two molecules each of histone H2A, H2B, H3, and H4. Having histone genes organized in a tandem-repeat structure also ensures that there will be equivalent amounts of the five proteins produced.
So, the correct answer is 'Repeated genes.'

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