CBSE · Class 12
Biology
9 chapters · All formulas with solved examples
Class 12 Biology: Reproduction, Genetics & Evolution, Human Health & Disease, Biotechnology, Ecology & Environment. Term-heavy — flashcards + one-liner formulas (like Hardy-Weinberg) matter most.
9 chapters · 111 formulas · Free · Print-ready
Complete Biology formula sheet (PDF) →01
Sexual Reproduction in Flowering Plants
Flower structure, microsporogenesis, megasporogenesis, pollination, double fertilisation, embryo and seed development — NCERT Class 12 Biology Ch 1
10 formulas
02
Human Reproduction
Male and female reproductive systems, spermatogenesis and oogenesis, the menstrual cycle and its hormones, fertilisation, implantation, pregnancy and parturition — NCERT Class 12 Biology Ch 2
18 formulas
04
Principles of Inheritance and Variation
Mendelian ratios, laws of inheritance, incomplete dominance, codominance, linkage, sex determination, pedigree analysis — NCERT Class 12 Biology Ch 4
10 formulas
05
Molecular Basis of Inheritance
DNA structure, replication, transcription, genetic code, translation, regulation of gene expression, Human Genome Project — NCERT Class 12 Biology Ch 5
10 formulas
06
Evolution
Origin of life, Miller's experiment, evidences for evolution, adaptive radiation, Darwinism and mutation theory, Hardy–Weinberg principle, types of natural selection and origin of man — NCERT Class 12 Biology Ch 6
14 formulas
07
Human Health and Disease
Pathogens, immune system, vaccines, HIV/AIDS, cancer, drug and alcohol abuse — NCERT Class 12 Biology Ch 7
10 formulas
09
Biotechnology: Principles and Processes
Recombinant DNA technology, restriction enzymes, cloning vectors, PCR, bioreactors and downstream processing — NCERT Class 12 Biology Ch 9
10 formulas
11
Organisms and Populations
Population attributes, birth and death rates, age pyramids, the population growth equation, exponential and logistic growth, life history variation and population interactions — NCERT Class 12 Biology Ch 11
14 formulas
12
Ecosystem
Ecosystem structure and function, primary and secondary productivity, GPP and NPP, decomposition, energy flow, the 10 per cent law, food chains and ecological pyramids — NCERT Class 12 Biology Ch 12
15 formulas
Biology Class 12 — Frequently asked
How many Biology formulas are in Class 12 CBSE?+
9 chapters covering roughly 111 core formulas — all listed with derivations and solved examples.
Are these Biology formulas aligned to the 2025-26 syllabus?+
Yes. Every chapter follows the current CBSE Class 12 syllabus for the 2026 board exam.
Can I download the Biology formula sheet as PDF?+
Yes. Open the complete Biology formula sheet (all chapters on one printable page) or any chapter's formula sheet, press Print / Save PDF and choose "Save as PDF". Every formula comes with its symbols, units and a short hint.