Question

Puffs or balbiani rings in salivary gland chromosomes are sites of

• A. DNA replication
• B. DNA duplication
• C. RNA synthesis
• D. Protein synthesis

Answer 1

The correct option is C RNA synthesis

Balbiani rings (after the name of its discoverer, Balbiani) are exceptionally large puffs on the polytene chromosomes. They are sites with a very high RNA production. These puffs are particularly well suited for studies of the structure of active genes and the synthesis and transport of specific RNA-protein (RNP) particles.

So, the correct answer is 'RNA synthesis'.