NCERT Solutions for Class 12 Biology Chapter 4 Principles of Inheritance and Variation: NCERT Solutions for Principles of Inheritance and Variation are available here. Questions from this chapter are ...

NCERT Solutions for Class 12 Biology Chapter 5 Molecular Basis of Inheritance: NCERT Solutions for Molecular Basis of Inheritance are available here. Questions from this chapter are frequently asked ...

Genes are located on chromosomes. Chromosomes are in pairs and genes, or their alleles, are located on each of these pairs. When the cell divides in half, each chromosome ends up in a different cell.