Genetic Engineering
Selective breeding - -Allowing only those animals that might be better hunters, better retrievers to pass
desired traits on to the next generation of organisms.
-Most farm animals, horses, cats and plants have been produced by selective breeding.
-The process of selecting a few organisms with desired traits to serve as parents of the next generation.
-The human practice of breeding animals or plants that have certain desired traits.
What is Hybridization? - -Crossing of dissimilar organisms to bring together the best of both organisms.
-Offspring is referred to as hybrid.
-Offspring produced by this selective breeding is referred to as hardier.
-When two distinctly different forms of a species mate and provide progeny capable of greater variation
than that of either parent.
Example of hybrid cross - cross the disease resistance of of one plant with the food producing capacity
of another.
Inbreeding - -Helps to ensure that the characteristics that make each breed unique will be preserved.
Inbreeding - -Characteristics of similar organsims can bring together genetic defects.
-Joints, hips, blindness, breathing problems are serious illness are all problems associated with 2
recessive alleles combining.
How can breeders Increase genetic variation? - -Inducing mutations.
-Using radiation and chemicals.
-
What is a mutation? - -Inheritable changes in DNA. Mutations occur spontaneously.
Selective breeding - -Allowing only those animals that might be better hunters, better retrievers to pass
desired traits on to the next generation of organisms.
-Most farm animals, horses, cats and plants have been produced by selective breeding.
-The process of selecting a few organisms with desired traits to serve as parents of the next generation.
-The human practice of breeding animals or plants that have certain desired traits.
What is Hybridization? - -Crossing of dissimilar organisms to bring together the best of both organisms.
-Offspring is referred to as hybrid.
-Offspring produced by this selective breeding is referred to as hardier.
-When two distinctly different forms of a species mate and provide progeny capable of greater variation
than that of either parent.
Example of hybrid cross - cross the disease resistance of of one plant with the food producing capacity
of another.
Inbreeding - -Helps to ensure that the characteristics that make each breed unique will be preserved.
Inbreeding - -Characteristics of similar organsims can bring together genetic defects.
-Joints, hips, blindness, breathing problems are serious illness are all problems associated with 2
recessive alleles combining.
How can breeders Increase genetic variation? - -Inducing mutations.
-Using radiation and chemicals.
-
What is a mutation? - -Inheritable changes in DNA. Mutations occur spontaneously.
