Chapter 24: Q27P (page 876)
Most protein-coding genes are present in just one copy per genome. Explain why eukaryotic genomes typically contain dozens of copies of histone genes.
It enables the efficient manufacture of histone proteins to fulfil high demand in a short amount of time.
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What is the probability that the palindromic symmetry of the trp repressor target DNA sequence (Section 24-4B) is merely accidental?
In what nucleic acid conformation(s) does the ribose pucker with C2’ endo? C3’ endo?
Describe the methods for visualizing DNA molecules after separation.
The asterisk in the structure shown in Problem 31 indicates the site where the base is attached via a two-carbon linker. Compare the overall backbone length for a PNA and a DNA molecule and explain why the two molecules can form base-paired duplexes.
The melting curve for the polyribonucleotide poly(A) is shown below.
(a) Explain why absorbance increases with increasing temperature.
(b) Why does the shape of the curve differ from the one shown in Fig. 24-22?
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