01:119:115 Lecture Notes - Lecture 11: Gynoecium, Dihybrid Cross, Heredity

• School: Rutgers University
• Department: Biological Science
• Course: 01:119:115
• Professor: Dr.Christy Beal

Document Summary

First to discover basic rules of inheritance in eukaryotes. Published findings in 1865, but importance of work not realized at time. Mendel"s work has become foundation of science of genetics. Discovered the basic principles of heredity by breeding garden peas. Advantages of pea plants (what makes a good test organism) 1: many varieties, easy to grow, short generation time. 4: chose clearly identifiable traits, easy to control pollination large numbers of offspring flowers have : stamen (male) and carpel (female, normally self-fertilize, experimental cross pollination. Character- a heritable feature that varies among individuals. True-breeding: plants that produce the same variety offspring when they self- pollinate generation after generation. All individuals of line have same characteristics same phenotype: physical or chemical expression an organisms gene"s. Blending inheritance mendel crossed true-breeding plants with contrasting traits. Characters are determined by heritable factors (gene) passed generation to generation. Each characters controlled by 2 factors (genes)