NCERT Class 12 Biology Book PDF – Textbook for 2026-27

eSaralClass 12 NCERT Class 12 Biology Book Class 12 Biology Syllabus Unit Chapter Overview What Are the 5 Units in NCERT Class 12 Biology? NCERT biology class 12 is organised into 5 units spanning 13 chapters (not 16 three chapters were removed in the syllabus rationalisation). The table below reflects the current 2026-27 structure. Unit Unit Name Chapters (Current) CBSE Marks Unit VI Reproduction Sexual Reproduction in Flowering Plants, Human Reproduction, Reproductive Health 16 Unit VII Geneti...