Problem:

Dna is packaged by proteins in the nucleus.

Question 1: What are the proteins that are involved?

Question 2: What subunits of these proteins makeup the nucleosome core?

Question 3: How does this nucleosome package DNA?

Question 4: What amino acids are found to be enriched in these proteins?

Question 5: Explain the modification of the nucelosome core that activates transcription.

Please read all the questions carefully and answer them.