In the late 1920s, a mutation occurred in many silver fox farms around the world. The fox farms that sold expensive
furs were proud of the quality of their furs, and each advertised that it had the best, purest breed of all the fox farms. The
new mutations produced a "platinum" coat pattern that was commercially desirable, so the farms crossed them to get
more. The results of their breeding experiments were as follows: (1) silver ´ silver >>> all silver offspring; (2) silver ´
platinum >>> equal numbers of silver and platinum; (3) platinum ´ platinum >>> two platinum for each silver offspring.
Explain. What will be an ideal response?
ANSWER: PP (silver), Pp (platinum), pp (lethal)
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Statements about what a researcher expects to happen to one variable if another variable changes are called ____
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