Question
Biology Question on the molecular basis of inheritance
A nucleosome is a portion of the chromonema containing_______
A
Only histones
B
Both DNA and histones
C
Only DNA
D
Both DNA and RNA
Answer
Both DNA and histones
Explanation
Solution
The chromatin is formed of a series of repeating units called nucleosomes. Each nucleosome consists of a chain of DNA twist around a histone octamer. The core of the nucleosome consists of four histones namely HA, HB, H, and H. Another histone namely H is associated with the linker region.