Principle of inheritance and variation Class 12 | Biology handwritten notes

Description

Content of the notes –

• Introduction
• Branches of genetics
• Pre Mendelian ideas about inheritance
• Mendel’s experiment
• Mendel’s experiment technique
• Steps involved in hybridization
• Mendel’s law of segregation
• Some important terms
• Law of dominance
• Law of independent assortment
• Success and failure of Mendel
• Post Mendalian concept of inheritance
• Incomplete dominance
• Co-dominance
• Multiple alleles
• Chromosomal theory of inheritance
• Linkage
• Recombination
• Lethal genes
• Sex determination
• Epistasis
• Complementary and supplementary genes
• Modified genes
• Quantitative inheritance
• Human skin colour
• Genetic mutation
• Morphological abbreviation of chromosomes
• Numerical aberration of chromosomes
• Mutagens
• Genetic diseases in human
• Sex chromosome abnormalities
• Autosomal abnormalities