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Genetic Basis of Inheritance

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Introduction to Genetics ✔

  • Ancient Concept
  • Theory of Preformation
  • Theory of Epigenesis
  • Theory of Pangenesis
  • Theory of Blending Inheritance
  • The Contribution of Gregor Mendel

The Terminology of Genetics – 01 ✔

  • Heredity, Inheritance, Variations, Genetics, Clones, Offspring, 
  • Factor, Gene, Character, Trait, Alleles
  • Homologous and Heterogenous Chromosomes
  • Dominant and Recessive Alleles

The Terminology of Genetics – 02 ✔

  • Genotype, Phenotype, Homozygous, Heterozygous, Pure Line
  • Hybridization, Hybrid, Monohybrid, Monohybrid Cross, Dihybrid, Dihybrid Cross, Polyhybrid Cross
  • F1 Generation, F2 Generation
  • Back Cross, Test Cross, Genome, Punnett Square

Mendel’s Monohybrid Cross Experiment ✔

  • Reasons for Selection of Garden Pea For the Experiment
  • Reasons for Success of Mendel’s Experiment
  • The Procedure of Monohybrid Cross Experiment
  • Phenotype Ratio, Genotype Ratio, Monohybrid Ratio
  • Mendel’s Conclusions of Experiment
  • Test Cross or Back Cross
  • Test Cross is a Back Cross But Back Cross is Not Test Cross

Mendel’s Laws of Inheritance ✔

  • Mendel’s Law of Unit Characters or Unit Factors
  • Mendel’s First  Law of Inheritance (Law of Dominance)
  • Mendel’s Second Law of Inheritance (Law of Segregation)
  • Mendel’s Third Law of Inheritance (Law of Independent Assortment)

Mendel’s Dihybrid Cross Experiment ✔

  • Dihybrid Cross
  • The Procedure of Dihybrid Cross Experiment
  • Observations of Dihybrid Cross Experiment
  • Mendel’s Conclusions of Experiment
  • The Law of Independent Assortment
  • Mathematical Explanation of The Law of Independent Assortment
  • Importance of Mendel’s Laws

Deviations From Mendelism – 01 ✔

  • Intragenic (Interallelic)Interaction
  • Intergenic (nonallelic) Interaction
  • Incomplete Dominance or Partial Dominance
  • Co-dominance
  • Complementary Genes
  • Multiple Alleles

Deviations From Mendelism – 02 ✔

  • Pleiotropy and its Effects
  • Phenylketonuria (PKU)
  • Marfan or Morphan’s Syndrome
  • Sickle Cell Anaemia
  • Effect of the Pleiotropy in Mice
  • Lethal Genes

Deviations From Mendelism – 03 ✔

  • Polygenic or Quantitative Inheritance
  • Polygenic Inheritance in Wheat Kernel Colour
  • Polygenic Inheritance in Human Skin Colour
  • Comparative Study of Qualitative and Quantitative Inheritance

Pedigree Analysis


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