BIOLOGY 1A03 Chapter Notes - Chapter 13: Blending Inheritance, Cell Theory, Black Sheep

• School: McMaster University
• Department: Biology
• Course: BIOLOGY 1A03
• Professor: Lovaye Kajiura

Document Summary

The chromosome theory of inheritance explained how genetic info is passed on from one generation to the next. attributes of life: ! Austrian monk gregor mendel in 1865 announced the rules of inheritance, which he discovered through a series of experiments on garden peas! Animal breeders and horticulturists were concerned about heredity(inheritance) of traits from parent to offspring. Trait is any characteristic of an individual ex, height ! Theory suggests meoisis causes patterns of inheritance medel observed and that hereditary factors called genes are located on chromosomes! Blending inheritance:traits from both parents blend together to form the trait the offspring has, therefore offspring has the intermediate trait. ex. white and black sheep parents->grey offspring ! Inheritance of acquired: traits in both parents are modi ed and then passed on to their offspring in the modi ed form. ex. giraffes strain neck to reach high trees, offspring will inherit trait for longer necks!