Chapter 28: Q28-14E (page 963)
Identify the following nucleotide, and tell how it is used.
The given nucleotides is 3’-Deoxythymidine-5’-Monophosphateand it is used as a monomer in DNA.
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Question: Amine bases in nucleic acids can react with alkylating agents in typical SN2 reactions. Look at the following electrostatic potential maps, and tell which is the better nucleophile, guanine or adenine. The reactive positions in each are indicated.
List codon sequences for the following amino acids:
(a) Ala
(b) Phe
(c) Leu
(d) Tyr
Question: Human and horse insulin both have two polypeptide chains, with one chain containing 21 amino acids and the other containing 30 amino acids. They differ in primary structure in two places. At position 9 in one chain, human insulin has Ser, and horse insulin has Gly; at position 30 in the other chain, human insulin has Thr, and horse insulin has Ala. How must the DNA for the two insulins differ?
Draw the structure of cyclic adenosine monophosphate (CAMP), a messenger involved in the regulation of glucose production in the body. Cyclic AMP has a phosphate ring connecting the 3'- and 5'-hydroxylgroups in adenosine.
From what DNA base sequence was the following RNA sequence transcribed?
(5’) UUCGCAGAGU (3’)
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