Biology I

 
  • Genetic Basis of Inheritance B11201011

    Genetic Basis of Inheritance B11201011

    Unit – IV A Pedigree Analysis Deficiencies of Mendelian Theory and Need of Pedigree Analysis: Mendelian crosses can not be applied to humans, due to following reasons. In human, controlled […]

     
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  • Genetic Basis of Inheritance B11201010

    Genetic Basis of Inheritance B11201010

    Unit – III B Deviations from Mendel’s Experiments (Contd.) Multiple Alleles: More than two alternative forms (alleles) of a gene in a population occupying the same locus on a chromosome or […]

     
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  • Genetic Basis of Inheritance B11201009

    Genetic Basis of Inheritance B11201009

    Unit – III A Deviations from Mendel’s Experiments Mendel performed his experiments with garden pea plant, which has traits or alleles having complete dominance and hence the laws of inheritanwasce […]

     
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  • Genetic Basis of Inheritance B11201008

    Genetic Basis of Inheritance B11201008

    Unit – II D Mendel’s Experiment (Dihybrid Cross) Dihybrid Cross: In organism, there are many characters and each character is controlled by respective alleles. To study whether one pair of allele affects […]

     
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  • Genetic Basis of Inheritance B11201007

    Unit – II C Mendel’s Laws of Inheritance Mendel’s First Law of Inheritance (Law of Dominance): In a cross between two organisms pure for any pair (or pairs) of contrasting characters, the […]

     
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  • Genetic Basis of Inheritance B11201006

    Genetic Basis of Inheritance B11201006

    Unit – II B – 02 Mendel’s Experiment (Monohybrid Cross) Cont. Test Cross or Back Cross: This is the method devised by Mendel to test the genotype of F1 Hybrids. In […]

     
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  • Genetic Basis of Inheritance B11201005

    Genetic Basis of Inheritance B11201005

    Unit – II B – 01 Mendel’s Experiment (Monohybrid Cross) Logic of Mendel’s Experiment: Initially, Mendel considered inheritance of one trait only. (Monohybrid). Then he studied two traits together (dihybrid) and […]

     
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  • Genetic Basis of Inheritance B11201004

    Genetic Basis of Inheritance B11201004

    Unit – II A Mendels Experiment (Selection of Pea Plant) Mendel’s Work: The first scientific explanation of inheritance was given by Mendel in 1866. He performed series of experiments on garden […]

     
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  • Genetic Basis of Inheritance B11201003

    Genetic Basis of Inheritance B11201003

    Unit – I B – 02 The terminology of Genetics (Contd.) Phenotype: The external appearance of an individual for any trait is called phenotype for that trait. In garden pea plant Height of […]

     
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  • Genetic Basis of Inheritance B11201002

    Genetic Basis of Inheritance B11201002

    Unit – I B – 01 Terminology of Genetics Inheritance: Inheritance is the process by which characters are passed on from parent to progeny; it is the basis of heredity. Variation is the […]

     
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