What is heterochromatin?

Distinguish heterochromatin and euchromatin.

Differentiate euchromation and heterochromatin.

Find out the wrong statement about heterochromatin.

Identify the correct Statements. (i) Kornberg proved semi conservative model of DNA replication. (ii) The Chromatin that is tightly packed is called heterochromatin. (iii) Catalytic RNA is called ribozyme. (iv) The coding strand is displaced during transcription.

What are chordae tendinae and what is their function?

What is sternum ? What is its importance ?