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In a species of flying dragons, the gene for fire-breathing is linked with the gene for temperament. Each gene has two loci and have a completely dominant inheritance pattern.

The allele for fire-breathing (F) is completely dominant to the recessive allele for non-fire-breathing (f). The allele for angry temperament (A) is completely dominant to the docile allele (a).

A male dragon heterozygous for both loci mates with a non-fire-breathing, docile female producing the following offspring:

63 fire-breathing, angry

11 fire-breathing, docile

16 non-fire-breathing, angry

59 non-fire-breathing, docile

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