logging in or signing up artificial selection sabanci Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 1543 Category: Entertainment License: All Rights Reserved Like it (4) Dislike it (0) Added: November 19, 2007 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Artificial Selection: Artificial Selection Look at the difference between these species of dog below: Slide2: Wild dogs Terriers Collies ViemeranaSlide3: What were the differences between the dogs? Size Colour Muscle development Length of coat Job NatureWhere have all these different species come from?: Where have all these different species come from? All these species are related to the wolf. But how?Slide5: Over thousands of years man has selected characteristics in dogs that are useful….. Very small dogs Used for pets Large hunting dogs Strong & powerful Large working dogs Strong and athleticSlide6: Artificial selection is the gradual improvement of animal and plant characteristics over time, for man’s benefit. Slide7: This artificial selection of characteristics happens in plants as well.. In the wild there are various species of corn plant Slide8: Good point: Strong stem Bad point: Small head Good point: Huge head of grain Bad point: Drought sensitive 1 2 3 4 Bad point: Small root Good point: strong roots Bad point: Small plant Good point: Disease resistantSlide9: Good point: Strong stem Good point: Huge head of grain Super CORN! Good point: Strong roots Good point: Disease resistantSlide10: Look what has happened to the varieties of the corn over last few hundred years. Slide11: Look at the variety of plants that have been artificially selected from mustard!Slide12: Growing lots of different varieties of wheat………… ……looking for new characteristics.Things I must know about artificial selection: Things I must know about artificial selection A.S. is the gradual improvement of organisms characteristics – for humans benefit. A.S. takes hundreds of years We have A.S. lots of animals and plants A.S. animals & plants produced higher yields: 1. more milk 2. more meat 3. more fruit You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.