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GENETICS You are starting a guinea pig breeding business. You read an article that said rough-coated guinea pigs cost four times more than smooth-coated guinea pigs. A rough-coat is one in which the fur goes in all different directions and doesn’t lay flat. The guinea pig looks like it always has bedhead. A rough-coat on your breed of guinea pig is recessive. Your guinea pig Scruffy has a gorgeous rough-coat. Scruffy is homozygous recessive for fur texture (rr). You have been offered two guinea pigs as a mate. Cletus (Guinea pig A) has RR as his genotype, while Rory (Guinea pig B) has Rr as his genotype. Both are smooth-coated guinea pigs. Explain which mate you would choose for Scruffy and why. You will do this by • Creating a Punnett square for each of the possible mates. • Describing the possible offspring’s phenotypes. • Choosing the mate that will make the most money and use the evidence from your Punnett squares to justify your answer.