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Question C (6 pts total): Horn production has cis-regulation, leading to variation in horn length. Explain what this means, and where you would look for the promoter region associated with horn length (2 pts). In contrast, sparkle sneezes are known to have trans-regulation. Explain what this means, and describe where you might look for the promoter region associated with sparkle sneezes (2 pts). Finally, describe why there could be a wider distribution of F2 uni-horse baby sparkle sneezes than in horn lengths (2 pts).

          Question C (6 pts total): Horn production has cis-regulation, leading to variation in horn length. Explain what this means, and where you would look for the promoter region associated with horn length (2 pts).
In contrast, sparkle sneezes are known to have trans-regulation. Explain what this means, and describe where you might look for the promoter region associated with sparkle sneezes (2 pts).
Finally, describe why there could be a wider distribution of F2 uni-horse baby sparkle sneezes than in horn lengths (2 pts).

Added by Patricia B.

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