Notes " PRINCIPLES OF INHERITANCE AND VARIATION"
Notes:- PRINCIPLES OF INHERITANCE AND VARIATION By Nagraj Sir PRINCIPLES OF INHERITANCE AND VARIATION • Genetics: deals with the inheritance, as well as the variation of characters from parents to offsprings. • Inheritance: is the process by which characters are passed on from parent to progeny. • Variation: is the degree by which progeny differ from their parents. MENDEL’S LAWS OF INHERITANCE: • Gregor Mendel. Conducted hybridization experiments on garden peas for seven years (1856 – 1863) and proposed laws of inheritance. • Mendel conducted artificial pollination/cross pollination experiments using several true-breeding pea lines. • A true breeding line is one that, having undergone continuous self-pollination for several generations. • Mendel selected 14 true-breeding peas’ plant varieties, as pair’s which were similar except for one character with contrasting traits. True breed selected by Mendel o Stem height- Tall / dwarf o Flower color- Violet/white o Flower position...