Question

Explain structure of nucleus. Differentiate between:- I. Smooth Endoplasmic reticulum and rough Endoplasmic reticulum. ii. Chromatin and chromosomes.​

Answer 1

Structure of nucleus:

• Nucleus contain protons and neutrons in it.

• Electrons revolve around the nucleus.

Rough endoplasmic reticulum:

• It contain robosomes.
• It produces hamones and proteins.

Smooth endoplasmic reticulum:

• It doesn't contain ribosomes.
• It produces lipids and proteins.

Chromatin and Chromosomes:

• The main difference between chromatin and chromosome is that chromatin consists of the unravelled condensed structure of DNA for the purpose of packaging into the nucleus whereas chromosome consists of the highest condensed structure of the DNA doublehelix for the proper separation of the genetic material.