CBSE Board Exam Class 12 Biology: Chapter-wise high scoring topics

TOI Education / Updated: Dec 15, 2023, 18:42 IST

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The CBSE Class 12 Board Exam 2024 date sheet has been released. The exams will be held from February 15 to March 2, 2024. Important topics for the CBSE Class 12 Biology Board Exam include modes of reproduction, human reproduction, principles of inheritance, molecular basis of inheritance, evolution, human health and disease, biotechnology, organisms and population, ecosystem, biodiversity and conservation, and environmental issues. This exam is significant for medical students preparing for NEET. It covers topics relevant to genetic engineering as well.

CBSE Board Exam Class 12 Biology: Chapter-wise high scoring topics

CBSE Class 12 Board Exam 2024: The Central Board of Secondary Education has released the CBSE Board Exam 2024 date sheet. The Class 12 board exams will be held from February 15 to March 2, 2024, according to the schedule. Students can access sample papers and important exam preparation tips here.
Although the Class 12 board exams 2024 begin early in February 22, with the English paper, the Biology paper is scheduled for March 19, 2024.The exam will begin at 10:30AM.
READ ALSO: CBSE Class 10, 12 Date Sheet 2024 Out - 8 Preparation Strategies for Last 60 Days
Class 12 Biology covers important topics for students preparing for Board Exams and competitive examinations. Medical students value this subject in particular because of its importance in medical entrance exams such as NEET. Each chapter is equally important in preparing for competitive exams, as well as for the upcoming board exams.
Here is a chapter-wise list of important topics that students appearing CBSE Class 12 Biology Board exam must cover.

Chapter name	Important topic
Reproduction in Organisms	- Modes of asexual reproduction
Sexual Reproduction in Flowering Plants	- Pre-Fertilization Events - Inbreeding depression - Double Fertilization
Human Reproduction	- Gametogenesis, Fertilization, and Events of Pregnancy
Reproductive Health	- Birth control methods - Sexually transmitted diseases - Techniques to treat infertility
Principles of Inheritance and Variation	- Mendel’s Laws - Post-Mendelian Genetics - Chromosomal Disorders and Pedigree analysis
Molecular Basis of Inheritance	- Structure of DNA - Experiments by F. Griffith, Hershey & Chase, and Meselson & Stahl - Mechanism: replication, transcription, and translation - Salient features of genetic code - Lac Operon
Evolution	- Homologous and analogous organs - Adaptive radiation - Hardy-Weinberg principle
Human Health and Disease	- Life cycle of Plasmodium - Causative agents of diseases and their mode of transmission - Difference between innate and adaptive immunity - AIDS and Drug Abuse
Strategies for Enhancement in Food Production	- Inbreeding and outbreeding - Single-cell protein
Microbes in Human Welfare	- Microbes and their products - Sewage treatment - Biogas production
Biotechnology: Principles and Processes	- Restriction enzymes - Cloning vectors - Transformation processes
Biotechnology and Its Applications	- Bt cotton - RNA interference - Gene therapy - Genetically engineered insulin
Organisms and Population	- Population interactions
Ecosystem	- Pyramids of number, energy, and biomass - Nutrient cycling - Ecological Succession
Biodiversity and Conservation	- Causes of biodiversity losses
Environmental Issues	- Air pollution - Eutrophication and Biomagnification