Selective Breeding Selective Breeding Humans have used patterns
Selective Breeding
Selective Breeding • Humans have used _______ patterns that occur naturally in dogs to pass on desired traits to the next generation. This is called selective breeding. • Selective breeding has been used to produce faster race
Inbreeding • This type of selective breeding is used to maintain certain traits in offspring. • ______ individuals are crossed in order to increase the chance of the offspring having the traits of their
Inbreeding • This sometimes causes problems because it increases the chance that an offspring will inherit two _____ alleles that may cause a genetic defect.
Inbreeding • For example, some German shepherds and Labrador retrievers have joint problems because of too much inbreeding.
Hybridization • This is where two individuals with _________ traits are crossed in hopes of getting the best traits from both parents.
Hybridization • Suppose there was a type of corn that was very drought resistant and another type of corn that had a great flavor. What would you hope to get by crossing those two
Examples of Hybrid Animals Liger
Examples of Hybrid Animals Zebra horse Mule
Genetic Engineering • This is where scientists take bits of ______ material from one organism and insert it into another. • They hope to someday use this technique to cure genetic disorders. • You. Tube - Genetic Engineering Animation
Genetic Disorders • _____________
Cloning • This involves using the genetic information from one organism to produce an exact _____ of that same organism. • A sheep named Dolly was the
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