[x]
[x]

CBSE 12TH BIOLOGY SYLLABUS MARKING SCHEMES 2015 DOWNLOAD

CBSE 12TH BIOLOGY SYLLABUS MARKING SCHEMES 2015 DOWNLOAD

Postby abhay16 » Wed Mar 04, 2015 9:38 pm

CBSE Class 12th Biology Syllabus with Marking Scheme 2014-15 Session – (Theory Paper) 70 Marks
Unit Title Marks
1 Reproduction 14
2 Genetic and Evolution 18
3 Biology and Human Welfare 14
4 Biotechnology and its Applications 10
5 Ecology and Environment. 14
Total —- 70
UNIT 1 – REPRODUCTION

Reproduction in organisms: Reproduction, a characteristic feature of all organisms for continuation of species; modes of reproduction – asexual and sexual reproduction; asexual reproduction – binary fission, sporulation, budding, gemmule, fragmentation; vegetative propagation in plants.

Sexual reproduction in flowering plants: Flower structure; development of male and female gametophytes;

Pollination – types, agencies and examples; 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.

Human Reproduction: Male and female reproductive systems; microscopic anatomy of testis and ovary;

Gametogenesis – spermatogenesis and oogenesis; menstrual cycle; fertilisation, embryo development upto blastocyst formation, implantation; pregnancy and placenta formation (elementary idea); parturition

(elementary idea); lactation (elementary idea).

Reproductive health: 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).

UNIT 2 – GENETIC AND EVOLUTION

Heredity and variation: Mendelian inheritance; deviations from Mendelism – 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 bee; 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. Molecular basis of inheritance: Search for genetic material and DNA as genetic material; Structure of DNA and RNA; DNA packaging; DNA replication; Central dogma; transcription, genetic code translation; gene expression and regulation – lac operon; genome and human genome project; DNA fingerprinting.

Evolution: Origin of life; biological evolution and evidences for biological evolution (paleontology, comparative anatomy, embryology and molecular evidence); Darwin’s contribution, modernsynthetic 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.

UNIT 3 – BIOLOGY AND HUMAN WELFARE

Health and disease: Pathogens; parasites causing human diseases (malaria, dengue, chickengunia, 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.

Improvement in food production: Plant breeding, tissue culture, single cell protein, Biofortification, Apiculture and Animal husbandry.

Microbes in human welfare: In household food processing, industrial production, sewage treatment, energy generation and as biocontrol agents and biofertilizers. Antibiotics; production and judicious use.

UNIT 4 – BIOTECHNOLOGY AND ITS APPLICATION

Principles and processes of biotechnology: Genetic Engineering (Recombinant DNA Technology). 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, bio piracy and patents.

UNIT 5 – ECOLOGY AND ENVIRONMENT

Organisms and environment: Habitat and niche, population and ecological adaptations; population interactions – mutualism, competition, predation, parasitism; population attributes – growth, birth rate and death rate, age distribution.

Ecosystems: Patterns, components; productivity and decomposition; energy flow; pyramids of number, biomass, energy; nutrient cycles (carbon and phosphorous); ecological succession; ecological services – carbon fixation, pollination, seed dispersal, oxygen release (in brief).

Biodiversity and its conservation: Concept of biodiversity; patterns of biodiversity; importance of biodiversity; loss of biodiversity; biodiversity conservation; hotspots, endangered organisms, extinction, Red Data Book, biosphere reserves, national parks, sanctuaries and Ramsar sites.

Environmental issues: Air pollution and its control; water pollution and its control; agrochemicals and their effects; solid waste management; radioactive waste management; greenhouse effect and climate change; ozone layer depletion; deforestation; any one case study as success story addressing environmental issue(s).

CBSE 12th Biology Subject – PRACTICALS – Total 30 Marks

One Major Experiment – 5 Marks

One Minor Experiment – 4 Marks

Side Preparation – 5 Marks

Spotting – 7 Marks

Practical Record & Viva – 4 Marks

Project Record & Viva – 5 Marks
abhay16
 
Posts: 31
Joined: Sat Sep 27, 2014 8:09 pm

Return to 12th

Who is online

Users browsing this forum: No registered users and 2 guests