EASC-101 Lecture Notes - Lecture 7: High Tech, Plant Breeding, Artificial Insemination
8 Apr 2016
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Document Summary
Traits are passed on from parents to offspring during sexual reproduction. Some of these traits are dominant and some are recessive. When they are mixed, a dominant trait will show up in the offspring. The frequency of a particular characteristic does not indicate whether it is dominant or recessive. A dominant trait, such as having six fingers, is relatively rare. Non-inherited characteristics are acquired and not necessarily passed on from generation to generation. Athleticism, artistic ability, leadership qualities are all learned during the early years of life. Some variations may be influenced by interactions with the environment. Examples include: change in the pigmentation of skin color throughout the seasons due to the sun, height and weight can be influenced by diet. Scars, injuries, clothing, hairstyle, make- up, and cosmetic surgery may change a person"s characteristics, but they are not caused by genetics. The interactions between a person"s genetics and the environment are very complex and are constantly being debated.
