1. Describe the structure and chemical composition of DNA...

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1. Describe the structure and chemical composition of DNA.

a)Summarize the experimental evidence that DNA is the genetic material.

b)Differentiate between B- and Z-DNA and explain how Z-DNA might influence gene expression.

c) Define supercoiling, and ascribe possible functions to positive and negative supercoiling.

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    Gene is the physical unit of heredity that transmits information from one cell to another and thereby one generation to another. DNA (deoxyribonucleic acid) is a double helical structure; it contains the organism’s...
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