Which of the following histone proteins is the most highly conserved from one organism to another?

Question

Quizplus · Accepted Answer

H3 is the most highly conserved histone protein from one organism to another. This is because it has a highly conserved DNA-binding domain and is involved in nucleosome formation, which is a fundamental process in chromatin packaging and gene regulation. In contrast, H1 is the least conserved histone protein and is involved in higher order chromatin structure, which varies greatly among different organisms.

Which of the Following Histone Proteins Is the Most Highly