A cross of two Kerry horses always produces Kerry offspring. A cross of a Kerry with a Dexter produces 1/2 Kerry
and 1/2 Dexter offspring. Crosses of two Dexters produce two Dexters for every Kerry. Explain. What will be an ideal response?
ANSWER: Kerry is homozygous (DD), Dexter is heterozygous (Dd), dd is lethal.
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