Question 1
The function of histones may be modified by the addition of all except which one of the following?
◦ Amino groups
◦ Acetyl groups
◦ Methyl groups
◦ Phosphate groups
◦ Histones may be modified by acetyl, amino, methyl, or phosphate groups.
Question 2
The zinc-binding domain of a zinc finger is formed by which amino acid(s)?
◦ Arginine and histidine
◦ Arginine and cysteine
◦ Two cysteines
◦ Histidine and cysteine
◦ Cysteine and arginine