BIOL 151 Study Guide - Final Guide: Gregor Mendel, Dihybrid Cross, Pea
Document Summary
In 1885, mendel worked out the rules of inheritance through a series of experiments on garden peas. Early in the 20th century, walter sulton and theodor boveri formulated the chromosome theory of inheritance. Proposes that meiosis causes the patterns of inheritance that mendel observed: genetics is the branch of biology that focuses on inheritance, heredity is the transmission of traits from parents to their offspring. Traits are any characteristic of an individual: mendel was addressing the basic questions, why offspring resemble their parents. In his time, two hypotheses had been formulated to try to answer the questions: blending inheritance. Parental traits blend: such that their offspring have intermediate traits. Parental traits are modified: then passed to their offspring. Genetics uses model organisms because the conclusions drawn from them can be applied to other species: mendel chose the common garden pea (pisum sativum) as his model organism because:
