{"id":241498,"date":"2022-12-29T08:00:09","date_gmt":"2022-12-29T02:30:09","guid":{"rendered":"https:\/\/www.aakash.ac.in\/blog\/?p=241498"},"modified":"2024-05-20T15:07:08","modified_gmt":"2024-05-20T09:37:08","slug":"cbse-class-12-biology-syllabus-check-revised-syllabus-for-cbse-academic-year","status":"publish","type":"post","link":"https:\/\/www.aakash.ac.in\/blog\/cbse-class-12-biology-syllabus-check-revised-syllabus-for-cbse-academic-year\/","title":{"rendered":"CBSE Class 12 Biology Syllabus 2023: Check Revised Syllabus for CBSE Academic Year 2022-23"},"content":{"rendered":"

CBSE Class 12 Biology Syllabus 2023:<\/strong> The CBSE class 12 board exams act as a decider for students preparing to get admission to the college of their dreams. So students must utilize their time in the best possible way to prepare for the class 12 board exams effectively. The hard work and dedication put in by these students today will surely pay off in the future. Every year, we come across numerous toppers, so don’t students wonder how they got there? The main reason behind this is the efforts and commitment that are put in by these students.<\/p>\n

Now the question arises, how do students tend to accomplish all of this? The simple answer to this question is a well-examined syllabus and planning future preparations accordingly with full concentration. For detailed answers use NCERT Solutions for Class 12 Biology.<\/a><\/p>\n

CBSE Class 12 Biology Syllabus 2022-23: Exam Scheme & Revised Course<\/h2>\n

Check the complete syllabus below along with the new exam scheme.<\/p>\n\n\n\n\n\n\n\n\n
Unit<\/strong><\/td>\nTitle<\/strong><\/td>\nMarks<\/strong><\/td>\n<\/tr>\n
VI<\/strong><\/td>\nReproduction<\/td>\n16<\/td>\n<\/tr>\n
VII<\/strong><\/td>\nGenetics and Evolution<\/td>\n20<\/td>\n<\/tr>\n
VIII<\/strong><\/td>\nBiology and Human Welfare<\/td>\n12<\/td>\n<\/tr>\n
IX<\/strong><\/td>\nBiotechnology and its Applications<\/td>\n12<\/td>\n<\/tr>\n
X<\/strong><\/td>\nEcology and Environment<\/td>\n10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Chapterwise Syllabus for CBSE CLass 12 Biology<\/h2>\n

Unit-VI Reproduction<\/h3>\n

Chapter- 2:<\/strong>\u00a0Sexual Reproduction in Flowering Plants<\/strong><\/a><\/h4>\n

Flower structure; development of male and female gametophytes; pollination – types, outbreeding devices; pollen-pistil interaction; double fertilization; post-fertilization events – development of endosperm and embryo, development of seed and formation of fruit; special modes- apomixis, parthenocarpy, polyembryony; Significance of seed dispersal and fruit formation<\/p>\n

Chapter- 3: Human Reproduction<\/a><\/strong><\/h4>\n

Male and female reproductive systems; microscopic anatomy of testis and ovary; gametogenesis-spermatogenesis and oogenesis; menstrual cycle; fertilisation, embryo development up to blastocyst formation, implantation; pregnancy and placenta formation (Elementary idea); parturition (elementary idea); lactation<\/p>\n

Chapter- 4: Reproductive Health<\/a><\/strong><\/h4>\n

Need for reproductive health and prevention of Sexually Transmitted Diseases (STDs); birth control – need and methods, contraception and medical termination of pregnancy (MTP); amniocentesis; infertility and assisted reproductive technologies – IVF, ZIFT, GIFT (Elementary idea for general awareness)<\/p>\n

Unit-VII Genetics and Evolution<\/h3>\n

Chapter 5: Principles of Inheritance and Variation<\/strong><\/h4>\n

Heredity and variation: Mendelian inheritance; deviations from Mentalism \u2013 incomplete dominance, co-dominance, multiple alleles and inheritance of blood groups, pleiotropy; elementary idea of polygenic inheritance; chromosome theory of inheritance; chromosomes and genes; Sex determination – in humans, birds and honey bees; linkage and crossing over; sex-linked inheritance – haemophilia, colour blindness; Mendelian disorders in humans – thalassemia; chromosomal disorders in humans; Down’s syndrome, Turner’s and Klinefelter’s syndromes<\/p>\n

Chapter 6: Molecular Basis of Inheritance<\/strong><\/h4>\n

Search for genetic material and DNA as genetic material; Structure of DN<\/a>A and RNA; DNA packaging; DNA replication; Central Dogma; transcription, genetic code, translation; gene expression and regulation – lac operon; Genome, Human and rice genome projects; DNA fingerprinting<\/p>\n

Chapter-7: Evolution<\/a><\/strong><\/h4>\n

Origin of life; biological evolution and evidence for biological evolution (palaeontology, comparative anatomy, embryology and molecular evidence); Darwin’s contribution, modern synthetic theory of evolution; mechanism of evolution – variation (mutation and recombination) and natural selection with examples, types of natural selection; Gene flow and genetic drift; Hardy – Weinberg’s principle; adaptive radiation; human evolution<\/p>\n

Also See:<\/strong><\/p>\n

CBSE Class 12 Syllabus 2023<\/a><\/strong><\/p>\n

Unit-VIII Biology and Human Welfare<\/h3>\n

Chapter 8: Human Health and Diseases<\/a><\/strong><\/h4>\n

Pathogens; parasites causing human diseases (malaria, dengue, chikungunya, filariasis, ascariasis, typhoid, pneumonia, common cold, amoebiasis, ring worm) and their control; Basic concepts of immunology – vaccines; cancer, HIV and AIDS; Adolescence – drug and alcohol abuse<\/p>\n

Chapter 10: Microbes in Human Welfare<\/strong><\/h4>\n

Microbes in food processing, industrial production, sewage treatment, energy generation, and microbes as bio-control agents and bio-fertilizers. Antibiotics; production and judicious use<\/p>\n

Unit-IX Biotechnology and its Applications<\/h3>\n

Chapter-11: Biotechnology<\/strong>\u00a0– Principles and Processes<\/h4>\n

Genetic Engineering (Recombinant DNA Technology)<\/p>\n

Chapter 12: Biotechnology and its Applications<\/strong><\/h4>\n

Application of biotechnology in health and agriculture: Human insulin and vaccine production, stem cell technology, gene therapy; genetically modified organisms – Bt crops; transgenic animals; biosafety issues, biopiracy, and patents<\/p>\n

Unit-X Ecology and Environment<\/h3>\n

Chapter 13: Organisms and Populations<\/strong><\/h4>\n

Population interactions – mutualism, competition, predation, parasitism; population attributes – growth, birth rate and death rate, age distribution. (Topics excluded: Organism and its Environment, Major Abiotic Factors, Responses to Abiotic Factors, Adaptations)<\/p>\n

Chapter-14: Ecosystem<\/a><\/strong><\/h4>\n

Patterns, components; productivity and decomposition; energy flow; pyramids of number, biomass, energy (Topics excluded: Ecological Succession and Nutrient Cycles)<\/p>\n

Chapter 15: Biodiversity and its Conservation<\/a><\/strong><\/h4>\n

Biodiversity-Concept, patterns, importance; loss of biodiversity; biodiversity conservation; hotspots, endangered organisms, extinction, Red Data Book, Sacred Groves, biosphere reserves, national parks, wildlife, sanctuaries and Ramsar sites<\/p>\n

NCERT Solutions for CBSE Class 12 Biology<\/h2>\n