EP ESSENTIAL ORG.CHEM.-MOD.MASTERING
3rd Edition
ISBN: 9780133858501
Author: Bruice
Publisher: PEARSON CO
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Textbook Question
Chapter 21, Problem 28P
If an mRNA contained only U and G in random sequence, what amino acids would be present in the protein when the mRNA is translated?
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14.46 Draw a stepwise mechanism for the following reaction.
HBr
ROOR
Br
+
Br
Show work..don't give Ai generated solution....
14.47 Addition of HCI to alkene X forms two alkyl halides Y and Z.
exocyclic C=C
X
HCI
CI
Y
+
CI Z
a. Label Y and Z as a 1,2-addition product or a 1,4-addition product.
b.Label Y and Z as the kinetic or thermodynamic product and explain
why.
c. Explain why addition of HCI occurs at the indicated C=C (called an
exocyclic double bond), rather than the other C=C (called an
endocyclic double bond).
Chapter 21 Solutions
EP ESSENTIAL ORG.CHEM.-MOD.MASTERING
Ch. 21.1 - Draw the structure for each of the following: a....Ch. 21.3 - If one of the strands of DNA has the following...Ch. 21.4 - The 2,3-cyclic phosphodiester that is formed...Ch. 21.5 - Using a dark line for the original parental DNA...Ch. 21.7 - Why do both thymine and uracil specify the...Ch. 21.9 - If methionine is always the first amino acid...Ch. 21.9 - Four Cs occur in a row in the segment of mRNA...Ch. 21.9 - UAA is a stop codon. Why does the UAA sequence in...Ch. 21.9 - A change in which base of a codon would be least...Ch. 21.9 - Write the sequences of bases in the sense strand...
Ch. 21.9 - List the possible codons on mRNA that specify each...Ch. 21.10 - Adenine can be deaminated to hypoxanthine, and...Ch. 21.10 - Explain why thymine cannot be deaminated.Ch. 21.12 - Which of the following base sequences would most...Ch. 21 - Draw structures for the following: a....Ch. 21 - What nonapeptide is coded for by the following...Ch. 21 - What is the sequence of bases in the template...Ch. 21 - What is the sequence of bases in the sense strand...Ch. 21 - What would be the C-terminal amino acid if the...Ch. 21 - What would be the base sequence of the segment of...Ch. 21 - Propose a mechanism for the following reaction:Ch. 21 - A segment of DNA has 18 base pairs. It has 7...Ch. 21 - Match the codon with the anticodon: Codon: AAA GCA...Ch. 21 - Using the single-letter abbreviations for the...Ch. 21 - Indicate whether each functional group of the five...Ch. 21 - Using the A and D designations in Problem 25,...Ch. 21 - Which of the following pairs of dinucleotides are...Ch. 21 - If an mRNA contained only U and G in random...Ch. 21 - Why is the codon a triplet rather than a doublet...Ch. 21 - Human immunodeficiency virus (HIV) is the...Ch. 21 - The amino acid sequences of peptide fragments...Ch. 21 - Which cytosine in the following sense strand of...Ch. 21 - Prob. 33PCh. 21 - Why does DNA not unravel completely before...Ch. 21 - The first amino acid incorporated into a...
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- 14.44 Ignoring stereoisomers, draw all products that form by addition of HBr to (E)-hexa-1,3,5-triene.arrow_forwardInclude stereochemistry Leven though the solutions manual does 14.43 Draw the products formed when each compound is treated with one not) equivalent of HBr. a. b. C.arrow_forward14.41 Label each pair of compounds as stereoisomers, conformations, or constitutional isomers: (a) A and B; (b) A and C; (c) A and D; (d) C and D. A B C Darrow_forward
- Steps and detailed explanation for work. Thanks!arrow_forward14.39 Draw the structure of each compound. a. (Z)-penta-1,3-diene in the s-trans conformation b. (2E,4Z)-1-bromo-3-methylhexa-2,4-diene c. (2E,4E,6E)-octa-2,4,6-triene d. (2E,4E)-3-methylhexa-2,4-diene in the s-cis conformationarrow_forwardPLEASE ANSWER ALL PARTS!!arrow_forward
- pls help on all, inlcude all steps.arrow_forward19. Complete the following chart for the incorrect electron configurations shown in the left column. When drawing the correct electron configuration, assume the same number of electrons that were shown in the incorrect configuration. Incorrect Electron Configuration 2p ↑↓ ↑ 2s ↑↓ 1s ↑↓↓ ਵੇ ਵੇ ਵੇ 3p ↑ ↑ ↑ - 38 ↑ 2p 2s ↑↓ 1s 2p 2s 1s ** ↑↓ ↑↓ ↑↑ 리리리 Which principle or rule is violated? Explain the violated principle or rule in your own words Draw the correct electron configurationarrow_forward14.36 Draw all reasonable resonance structures for each compound. a. + b. C. :O: d. :O: NH2 NH2 :O:arrow_forward
- 14.32 What diene and dienophile are needed to prepare each compound by a Diels-Alder reaction? a. b.arrow_forward14.34 Draw all reasonable resonance structures for each species. a. b. Ö :0: C. :0: :0: d. OH e. f. :O:arrow_forward7. The standard reduction potentials for two half-reactions are shown above. Which of the statements listed below will be true for the following reaction taking place under standard conditions? a. E° b. E° c. E° = d. E° e. E° = Al (s) + Cr³+ → Al³+ + Cr (s) 0.93 V, and the reaction is not spontaneous 0.93 V, and the reaction is spontaneous 2.39 V, and the reaction is not spontaneous 2.39 V, and the reaction is not spontaneous 0.93 V, and the reaction is spontaneous Cu2+ + 2e → Cu E° = +0.34 V Zn2+ + 2e → Zn E° = -0.76 V E° = -1.18 V Mn2+ + 2e → Mn 8. Based on the above reduction potential, which of the following reactions will occur spontaneously? a. Mn²+ + Cu → Mn + Cu2+ b. Mn²+ + Zn → Mn + Zn²+ c. Zn2+ + Cu → Zn + Cu²+ d. Zn²+ + Mn → Zn + Mn2+ e. Cu²+ + Zn²+ → Cu + Znarrow_forward
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