Introduction To Genetics: Bio 1

Subject : BIO 1- GENETICS Unit I : INHERITANCE AND VARIATION Lesson 1 : Overview of Genetics Lesson 2 : The Relationship Between Genes and Traits Lesson Outcomes: At the end of the lesson, students should have: Defined genetics. Given the relationship between genes and traits. Explained how genetics and environment play important roles in the development of an organism. Showed the traits of any species of plants and animals. Valued the application of genetics and environment in the outcome of traits. Introduction: Genetics is the branch of biology that deals with heredity and variation. It stands as the unifying discipline in biology by allowing us to understand how life can exist at all levels of complexity, ranging from the molecular to the population level. The term Genetics was coined by W illiam Bateson is 1905. The term genetics derived from the Greek word genetikos and genesis. Genetikos: generative and genesis: origin. Genetic variation is the root of the natural diversity that we observe among members of the same species as well as among different species. Genetics is centered on the study of genes. A gene is classically defines as a unit of heredity, but such a vague definition does