Chromosome puffs in the polytene chromosomes puffs ) are sites of

Options

A. DNA replication
B. mRNA synthesis
C. synthesis of polysaccharides
D. synthesis of lipids

Answer

B

Explanation

In polytene chromosomes (salivary gland chromosomes). Large swellings are called puffs or Balbiani rings, named after their discoverer. In such rings. DNA is active, uncoiled for rapid transcription of RNA or protein synthesis.