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If the genotype is "Aa, Bb", then 4 different kinds of gametes can be made: (aB, AB, ab, and Ab) A creature with 2 heterozygous genes is called a "dihybrid."
In comparison, a creature with this genotype: "Aa, BB" will have these sex cells: (AB and aB)
In comparison, a creature with this genotype: "AA, BB" will have only have this: (AB)
To determine how many different kinds of gamete will be produced: Use 2n Where n = number of gene pairs.
A "tri-hybrid", a beast with 3 hybrid genes, would produce 8 different kinds of sperm/egg.
A "tetra-hybrid", a beast with 4 hybrid genes, would produce 16 different kinds of sperm/egg.
A "penta-hybrid", a beast with 5 hybrid genes, would produce 32 different kinds of sperm/egg.
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