In garter snakes, there is an allele that in the heterozygous condition, produces snakes with a blotched color patterns. Snakes that are homozygous dominant for the allele are brown. Homozygous recessive snakes abort early or are stillborn.
If a blotched male is mated to a similarly colored female, what is the phenotypic ratio you would expect between the 18 living offspring?
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