7. DNA and Chromosome Structure
Eukaryotic Chromosome Structure
Problem 17
Textbook Question
Textbook QuestionHistone protein H4 isolated from pea plants and cow thymus glands contains 102 amino acids in both cases. A total of 100 of the amino acids are identical between the two species. Give an evolutionary explanation for this strong amino acid sequence identity based on what you know about the functions of histones and nucleosomes.
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