Essentials of Genetics - Masteringgenetic
9th Edition
ISBN: 9780134143699
Author: KLUG
Publisher: PEARSON
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Chapter 12, Problem 16PDQ
Most proteins have more leucine than histidine residues but more histidine than tryptophan residues. Correlate the number of codons for these three amino acids with this information.
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Most proteins have more leucine than histidine residues, but more histidine than tryptophan residues. Correlate the number of codons for these three amino acids with this information.
Aspartic acid and glutamic acid have carboxyl groups on their side chains and are called acidic amino acids. Compare the codons for these two amino acids.
Compare the codons with a pyrimidine, either U or C, as the second base. Do the majority of the amino acids specified by these codons have hydrophobic or hydrophilic side chains?
Chapter 12 Solutions
Essentials of Genetics - Masteringgenetic
Ch. 12 - CASE STUDY | A drug that sometimes works A...Ch. 12 -
CASE STUDY | A drug that sometimes works
A...Ch. 12 -
CASE STUDY | A drug that sometimes works
A...Ch. 12 - HOW DO WE KNOW? In this chapter, we focused on the...Ch. 12 - Review the Chapter Concepts list on p. 215. These...Ch. 12 - In studies of frameshift mutations, Crick,...Ch. 12 -
4. The mRNA formed from the repeating...Ch. 12 - In studies using repeating copolymers, AC......Ch. 12 - Prob. 6PDQCh. 12 - Prob. 7PDQ
Ch. 12 -
8. When the amino acid sequences of insulin...Ch. 12 - Prob. 9PDQCh. 12 - Why doesn't polynucleotide phosphorylase (Ochoa's...Ch. 12 - Refer to Table 12.1. Can you hypothesize why a...Ch. 12 -
12. Predict the amino acid sequence produced...Ch. 12 - A short RNA molecule was isolated that...Ch. 12 - A glycine residue exists at position 210 of the...Ch. 12 - Shown here is a theoretical viral mRNA sequence...Ch. 12 -
16. Most proteins have more leucine than...Ch. 12 - Define the process of transcription. Where does...Ch. 12 - Describe the structure of RNA polymerase in...Ch. 12 - In a written paragraph, describe the abbreviated...Ch. 12 - Messenger RNA molecules are very difficult to...Ch. 12 - One form of posttranscriptional modification of...Ch. 12 - In a mixed copolymer experiment, messages were...Ch. 12 -
23. Shown in this problem are the amino acid...Ch. 12 - Alternative splicing is a common mechanism for...Ch. 12 - The genetic code is degenerate. Amino acids are...
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- Most codons specify an _________ . a. protein c. amino acid b. polypeptide d. mRNAarrow_forwardFigure 28.41 gives some examples of recombination in IgG codons 95 and 96, as specified by the Vkand Jkgenes. List the codon possibilities and the amino acids encoded if recombination occurred in codon 97. Which of these possibilities is less desirable?arrow_forwardTHE CODONS THAT CODE FOR THE AMIMO ACID SER (SERINE) ARE UCU, UCC,_____ AND _____arrow_forward
- What are the possible codons that a tRNA molecule could interact with if it is carrying each of the following amino acids? (Note that a given tRNA will be specific for one or more of the possible codons) Valine Alanine Cysteine Tyrosinearrow_forwardA segment in the middle of an mRNA has the sequence 5¿- AGAGAACCGCGA-3¿. Using the codon table, translate this sequence, assuming the first three nucleotides are a codon.arrow_forwardCodons in the set CUU, CUC, CUA, and CUG all code for the amino acid leucine. In this set, the first and second bases are identical; the identity of the third base is irrelevant. For what other sets of codons is the third base also irrelevant? For what amino acid(s) does each set code?arrow_forward
- Suppose the codon sequence GCCAUUCAAGCGGAU has a single base pair mutation to GCCAUUCAAACgGAU. If the old protein sequence was Ala-Ile-Gln-Ala-Asp, what will be the new sequence encoded by the mutant gene? _________(Use the 3-letter amino acid abbreviations with hyphens and no spaces in between, i.e. Ser-Asn-Tyr-Learrow_forwardDescribe the effect of this mutation on the amino acid sequence of the beta-gloving polypeptide chain: effect of mutation on codon, which amino acid was changed (#amino acids from beginning of chain), what was the amino acid change (from which amino acid to which amino acid?) also find the reputable published source to support this informationarrow_forwardSuppose the codon sequence GUGCAAUUCGAGGCC has a single base pair mutation to GUGCAAUUCAAGGCC. If the old protein sequence was Val-Gln-Phe-Glu-Ala, what will be the new sequence encoded by the mutant gene? ____________________________.arrow_forward
- If there are 64 possible codons in the genetic code and the amino acid is specified by each, as read in the 5’ to 3’ direction from the mRNA sequence, which ones are STOP codons?arrow_forwardHow many different DNA sequences could code for amino acid sequence Met-His-Leu-Thr-Trp-Lys? (Note: in some cases there are six codons for one amino acid.) Show your work.arrow_forwardIf a tRNA has an anticodon sequence 3′–CCI–5′, what codon(s) can it recognize?arrow_forward
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