NEETZoologyMolecular Basis of Inheritance
Term Description A. Nucleosome 1. Transcriptionally active chromatin B. Histones 2. Positively charged proteins around which DNA wraps C. Euchromatin 3. "Beads-on-string" structure of DNA D. Heterochromatin 4. Transcriptionally inactive chromatin
Options
- AA - 3, B - 2, C - 1, D - 4
- BA - 2, B - 3, C - 1, D - 4
- CA - 4, B - 1, C - 3, D - 2
- DA - 1, B - 4, C - 2, D - 3
Correct answer
A. A - 3, B - 2, C - 1, D - 4
Step-by-step solution
A - 3: Nucleosome is the "beads-on-string" structure of DNA seen under an electron microscope. B - 2: Histones are positively charged proteins around which DNA wraps to form nucleosomes. C - 1: Euchromatin is the transcriptionally active form of chromatin. D - 4: Heterochromatin is the transcriptionally inactive form of chromatin.