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Chapter 28: Q28-5P (page 950)
What RNA base sequence is complementary to the following DNA base sequence?
(5’) GGCTAATCCGT (3’)
The RNA base sequence which is complementary to the above DNA sequence can be written as .
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If the DNA coding sequence -CAA-CCG-GAT- were miscopied during replication and became -CGA-CCG-GAT-, what effect would there be on the sequence of the protein produced?
Write molecular formulas for compounds that show the following molecular ions in their high-resolution mass spectra, assuming that C, H, N, and O might be present. The exact atomic masses are: 1.00783\(\left( {{}^1{\bf{H}}} \right)\), 12.00000\(\left( {{}^{12}C} \right)\), 14.00307\(\left( {{}^{14}N} \right)\), 15.99491\(\left( {{}^{16}O} \right)\).
(a)\({{\bf{M}}^ + }{\rm{ = 98}}{\rm{.0844}}\)
(b\({{\bf{M}}^ + }{\rm{ = 123}}{\rm{.0320}}\)
The proton and carbon NMR spectra for each of three isomeric ketones with the formula\({{\bf{C}}_{\bf{7}}}{{\bf{H}}_{{\bf{14}}}}{\bf{O}}\)are shown below. Assign a structure to each pair of spectra.
Propose a structure consistent with the following spectral data for a compound :
IR: NMR: (12 H, singlet); (4 H, singlet); (2 H, singlet)
From what DNA base sequence was the following RNA sequence transcribed?
(5’) UUCGCAGAGU (3’)
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