You are conducting a lab experiment on the promoter regions of genes. In one experiment you

apply heat to two sections of DNA that you believe could be promoter regions. One region

unwinds at 80 degrees C and the other unwinds at 60 degrees C. Which of the two strands

contain the promoter? Explain.

b. Apply your knowledge of genetics to explain what would happen in a nucleus if histones were negatively charged.

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