12TH Grade, 12th Biology Notes, Guides & Study Resources

CBSE Class 12 Biology – Reproduction in Organisms

12th . Biology . Reproduction in Organisms

Explore the fascinating chapter on reproduction—covering both asexual and sexual modes, anatomy of reproduction, developmental pro...

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CBSE Class 12 Biology – Sexual Reproduction in Flowering Plants

12th . Biology . Sexual Reproduction in Flowering Plants

Dive into the intricate process of sexual reproduction in flowering plants—covering flower structure, pollination, double fertiliz...

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Explore Sexual Reproduction in Flowering Plants – Review the study notes and take the quiz challenge!

CBSE Class 12 Biology – Human Reproduction

12th . Biology . Human Reproduction

Explore the intricate process of human reproduction—from gametogenesis to fertilization, embryonic development, parturition, and l...

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Explore Human Reproduction – Review the study notes and take the quiz challenge!

CBSE Class 12 Biology – Reproductive Health

12th . Biology . Reproductive Health

Understand reproductive health, family planning, STDs, infertility, contraception methods, legal aspects like MTP, and community w...

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Explore Reproductive Health – Review the study notes and take the quiz challenge!

CBSE Class 12 Biology – Principles of Inheritance and Variation

12th . Biology . Principles of Inheritance and Variation

Explore the genetic principles set forth by Mendel, inheritance patterns, chromosomal theory, variations, mutations, and genetic d...

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CBSE Class 12 Biology – Molecular Basis of Inheritance

12th . Biology . Molecular Basis of Inheritance

Delve into the molecular secrets of inheritance: structure and replication of DNA, central dogma, transcription, translation, gene...

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CBSE Class 12 Biology – Evolution

12th . Biology . Evolution

Explore the science of evolution—covering origin of life, Darwinism, mechanisms like natural selection, speciation, evidence, and...

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Explore Evolution – Review the study notes and take the quiz challenge!

CBSE Class 12 Biology – Human Health and Disease

12th . Biology . Human Health and Disease

Understand health, disease types, immunity, disorders like AIDS, cancer, allergies, autoimmunity, vaccines, and preventive strateg...

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Explore Human Health and Disease – Review the study notes and take the quiz challenge!

CBSE Class 12 Biology – Strategies for Enhancement in Food Production

12th . Biology . Strategies for Enhancement in Food Production

Learn how to boost food output through plant breeding, animal husbandry, single‐cell proteins, tissue culture, biofortification, a...

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Explore Strategies for Enhancement in Food Production – Review the study notes and take the quiz challenge!

CBSE Class 12 Biology – Microbes in Human Welfare

12th . Biology . Microbes in Human Welfare

Unlock how microbes benefit humans—from food and medicine to environment, agriculture, fuel, biocontrol, and biotech innovations—s...

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Explore Microbes in Human Welfare – Review the study notes and take the quiz challenge!

CBSE Class 12 Biology – Organisms and Populations

12th . Biology . Organisms and Populations

Explore how individual organisms adapt to their environments and how populations grow, interact, and maintain ecological balance t...

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Explore Organisms and Populations – Review the study notes and take the quiz challenge!

CBSE Class 12 Biology – Ecosystem

12th . Biology . Evolution

Explore ecosystem structure, functions, energy flow, productivity, decomposition, pyramids, succession and nutrient cycling—the in...

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Explore Evolution – Review the study notes and take the quiz challenge!

12TH Grade, 12th Biology Notes, Guides & Study Resources – Free Access