Question

Components of nucleus are

• A. Karyotheca, nucleolus, chromatin and nucleoplasm
• B. Nuclear envelope, nucleolus
• C. Nuclear envelope, nucleoplasm and chromatin
• D. All the above.

Answer 1

Answer: (A)

Karyotheca, nucleolus, chromatin and nucleoplasm

The main components of the nucleus are-

1) Nucleolemma or nuclear membrane or karyotheca- is a limiting membrane that separates the nucleus from the cytoplasm and transports important material between the nucleus and cytoplasm.

2) Nucleolus is a spherical dark structure present inside the nucleus

3) Chromatin is genetic material made of DNA and histone protein

4) Nuclear matrix or nucleoplasm is semifluid homogenous substance

Hence the correct option is A.