CHAPTER 4 - PRINCIPLES OF INHERITANCE AND VARIATION
Principles of Inheritance and Variation Principles of Inheritance and Variation deals with the study of inheritance and variation through genetics. Genetics Genetics is the branch of biology which deals with study of inheritance and variation of characters from parents to offspring. Term 'genetics' was given by W. Bateson (Father of Modern Genetics). Inheritance Inheritance is the process by which characters are passed on from parent to progeny. Variation Variation is the degree of characters by which progeny differ from their parents, siblings. It may be natural and artificial. Mendel’s Laws of Inheritance Gregor Mendel, conducted hybridisation experiments on garden peas for seven years (1856-1863) He proposed the laws of inheritance in living organisms. He conducted cross pollination experiments using several true-breeding pea lines. He selected 14 true-breeding pea plant varieties, as pairs which were similar except for ...