NS vs. AS

NS vs. AS

1. Artificial Selection

   • The process of humans breeding or modifying organisms for desirable traits.
   • Types of Artificial Selections
     • Gene Modification
       • The process of altering genetic makeup of an organism.
       • Pro: can create a resistance to diseases. Con: negative side effects.
     • Selective Breeding
       • Breeding 2 animals for a desired trait
       • Pro: can have a traits you want for animals Con: There can be health problems within the animals
     • Gene Therapy
       • The transplantation of normal genes into cells in place of missing or defective ones in order to correct genetic disorders.
       • Pro: Can wipe out genetic diseases before it goes really bad Con: Is a dangerous process.

2. Natural Selection

   • Organisms that adapt to their environment tend to survive and reproduce.
   • Mutation
     • A change in the genes that gives an organism variety within the species.
   • Adaptation
     • • Structural adaptation of a camel having structural body parts for the desert.
   • Three things that should occur for natural selection to happen is having variety, traits inherent from parents, and they have to survive to reproduce.
   • An example of natural selection is a frog getting hunted by predators but there is a variety within the frogs and some can blend in with the environment and some can't and the ones that can survive and reproduce.

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