Ribosomal RNA (rRNA) constitutes about 80% of the total RNA in a cell. It is a key component of ribosomes, where protein synthesis occurs. In contrast, messenger RNA (mRNA) and transfer RNA (tRNA) make up smaller proportions and serve as intermediaries in protein synthesis.
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.