lass 12 Biology NCERT Principles of Inheritance and Variation
The chapter Principles of Inheritance and Variation in Class 12 NCERT Biology introduces students to the basic concepts of genetics and heredity. It explains Mendelian principles, monohybrid and dihybrid crosses, and the laws of inheritance. Students also learn about sex-linked traits, multiple alleles, chromosomal theory of inheritance, and variations that contribute to evolution.
NCERT provides detailed explanations, solved examples, and exercises to strengthen understanding and problem-solving skills. This chapter is vital for CBSE Class 12 board exams and competitive exams like NEET, where questions on genetics are frequently asked. By mastering Principles of Inheritance and Variation, students gain insights into how traits are transmitted across generations, the role of genes in determining characteristics, and the importance of variations in adaptation and evolution. Diagrams, Punnett squares, and regular practice enhance retention and exam performance.
