Transcription begins when RNA polymerase binds to the promoter (Initiation), continues with the synthesis of RNA (Elongation), and ends when RNA polymerase reaches the terminator sequence (Termination).
Study the diagram given below and answer the questions that follows:
(a) Identify the structure shown in the above figure.
(b) Identify the labels P and Q.
(c) Write the nature of histone proteins.
(d) Distinguish between Euchromatin and Heterochromatin.