Biology 12 Biology 12

UNIT I: Reproduction in Organisms
  • Reproduction
  • a characteristic feature of all organisms for continuation of species; Modes of reproduction - asexual and sexual; asexual reproduction - binary fission
  • sporulation
  • budding
  • gemmule formation
  • fragmentation; vegetative propagation in plants
  • Pollination - types, agencies and examples
  • Post fertilization events - Development of endosperm and embryo
  • Special modes-apomixis
  • parthenocarpy
  • polyembryony
UNIT II: Sexual Reproduction in Flowering Plants
  • Pre-fertilization: Structures and events - microsporangium
  • pollen grain
  • structure of anthers and ovaries
  • pollination and its types
  • Process and events
  • Post-fertilization: Structures and events - formation of endosperm and embryo
  • development of seeds and formation of fruit
  • parthenogenesis and apomixis
UNIT III: Human Reproduction
  • gametogenesis
  • fertilization
  • embryo development
  • pregnancy and placenta
  • parturition
  • lactation
  • reproductive health - STDs
  • infertility
UNIT IV: Reproductive Health
  • Need for reproductive health
  • problems and strategies for reproductive health
  • adolescent issues
  • population explosion
  • birth control methods
  • MTP
  • STDs
UNIT V: Principles of Inheritance and Variation
UNIT VI: Molecular Basis of Inheritance
  • replication
  • regulation of gene expression
  • human genome project
  • DNA fingerprinting
  • RNA interference
UNIT VII: Evolution
  • Origin of life
  • theories of evolution
  • evidences for evolution - fossil records
  • biogeography
  • embryology
  • molecular evidence
  • convergent evolution
  • divergent evolution
  • Hardy-Weinberg principle
  • natural selection
UNIT VIII: Human Health and Disease
  • Common diseases in humans - infectious and non-infectious diseases
  • immunity - innate and acquired
  • tuberculosis
  • preventive measures
UNIT IX: Strategies for Enhancement in Food Production
  • Plant breeding - role of selection
  • hybridization
  • cross-pollination
  • steps in plant breeding
  • tissue culture methods
  • single cell protein
UNIT X: Microbes in Human Welfare
  • Microbes in household products
  • industrial products
  • microbes as biocontrol agents
  • antibiotics
  • production of alcohol and antibiotics
UNIT XI: Biotechnology: Principles and Processes
  • DNA cloning
  • PCR
  • electrophoresis
  • DNA fingerprinting
  • medicine and industry
  • ethical issues
UNIT XII: Biotechnology and its Applications
UNIT XIII: Organisms and Populations
  • Organisms and environment
  • habitat and niche
  • population and ecological adaptations
  • population interactions - mutualism
  • competition
  • predation
  • parasitism
  • population attributes
  • population growth and regulation
  • ecological succession
UNIT XIV: Ecosystem
  • Ecosystem structure and function
  • productivity
  • energy flow
  • nutrient cycling
  • ecological pyramids
  • ecological succession
  • biogeochemical cycles
  • conservation of biodiversity
  • endangered species
  • conservation strategies
UNIT XV: Biodiversity and Conservation
  • threats to biodiversity
  • national parks
  • wildlife sanctuaries
  • endangered and endemic species