Answer: DNA and proteins (mainly histones).
- A RNA mainly, transcribed directly from the nucleolus
- B Protein mainly, folded into a fibrous keratin-like scaffold
- C DNA and proteins (mainly histones)
- D Lipids and DNA bound by a phospholipid bilayer
Correct answer: C. DNA and proteins (mainly histones)
Explanation: Chromosomes are made of DNA tightly wound around histone proteins. This DNA-protein complex is called chromatin.
Punnett square for a monohybrid cross between two heterozygous (Tt) parents, showing the 3:1 phenotypic ratio predicted by Mendel's Law of Segregation.
Concept context
Mendel's laws, inheritance patterns, DNA structure, and molecular biology. Core of NEET biology.
Read the full Principles of Inheritance and Variation notes →