The histone protein H4 from cows and the H4 from peas, representing groups that diverged from one another over a billion years ago, differ by only two amino acid residues out of 102 total residues. The changes are conservative - Val60 in cali thymus H4 is replaced by an lle in peas; Lys77 in the calf H4 is replaced by an Arg in peas. Propose a hypothesis that explains why the H4 histone protein is so highly evolutionarily conserved.

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Q: having

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Q: Normal vision father X normal vision ( carrier) mother

A:

Q: ос О А Ов No answer text provided.

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Nutrition and Digestion

The process of consuming nutrients to utilize them for various biological purposes is known as nutrition. The substances absorbed from food are known as nutrients. They serve different important functions in the body, such as repairing wounds and damages, generating energy for metabolism, and regulating biochemical reactions.