Changes

====Example====

====Example====

A useful illustrative example is the gene that encodes blood type.  The “I” gene encodes a protein on the surface of blood cells. There are three common alleles: I[A], I[B], and I[O].  A human will have two of these alleles.  A and B confer blood types A and B, respectively.  An ndividual with two A alleles, or an A and an O allele will be blood type A, while an individual with two B alleles or a B and O allele will be blood type B.  Hence, the O allele is recessive to both A and B alleles, and A and B are dominant to O.  A and B are co-dominant, so that a person with A and B alleles will have blood type AB.

A useful illustrative example is the gene that encodes blood type.  The “I” gene encodes a protein on the surface of blood cells. There are three common alleles: I[A], I[B], and I[O].  A human will have two of these alleles.  A and B confer blood types A and B, respectively.  An individual with two A alleles, or an A and an O allele will be blood type A, while an individual with two B alleles or a B and O allele will be blood type B.  Hence, the O allele is recessive to both A and B alleles, and A and B are dominant to O.  A and B are co-dominant, so that a person with A and B alleles will have blood type AB.

===Morphy===

===Morphy===

A system propsoed by Hermann Muller, and still in use today, is the classification of morphy.

A system proposed by Hermann Muller, and still in use today, is the classification of morphy.

====Amorph====

====Amorph====

====Neomorph====

====Neomorph====

A neomorphic allele has a novel or new function. These are often cuased by the fusion of two existing genes, creating a hybrid protein product, or the fusion of one gene’s control or regulatory features with the protein encoding region of another gene, causing a gene to be expressed in a new pattern in an organism

A neomorphic allele has a novel or new function. These are often caused by the fusion of two existing genes, creating a hybrid protein product, or the fusion of one gene’s control or regulatory features with the protein encoding region of another gene, causing a gene to be expressed in a new pattern in an organism

====Antimorph====

====Antimorph====