
Concept explainers
(a)
Interpretation: The reason corresponding to the fact that the two purine bases (
Concept introduction: The building block of DNA and RNA is
(b)
Interpretation: The reason corresponding to the fact that the hydrogen bonding between guanine and cytosine is more favorable than hydrogen bonding between guanine and thymine is to be stated.
Concept introduction: The building block of DNA and RNA is nucleotide. It is an organic molecule. There is a specific structure for each and every nucleotide which enables the formation of DNA and RNA. DNA is composed by the four nitrogenous bases. These are connected by the chemical bond.

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Chapter 28 Solutions
Organic Chemistry
- (a) 21.8 Name the following compounds. & (b) Br (e) O₂N. (h) H (c) Br (d) NH2 ☑N Br H ہیں Ph (g) OMe бл .0-0.e 21.9 Draw a structural formula for each compound. (a) 2,3-Dinitrotoluene (c) Diphenylmethanol (e) p-Nitroaniline (b) 3-Propylanisole (d) m-Propylphenol (f) Pentabromobenzenearrow_forwardIs this the major product of this reaction?arrow_forwardPlease helparrow_forward
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