Microbiology With Diseases By Taxonomy (6th Edition)
6th Edition
ISBN: 9780134832302
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 7, Problem 16CT
What DNA
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Codons 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?
What amino acid sequence is encoded by the codon sequence ACGCAGCGCCCGGUC?
Use the 3 letter abbreviation with hyphens and no spaces in between.
Part of a sequence of DNA from a person without this genetic disease is:
TAG TAA AAA CCA CCC AGG
Part of a sequence of DNA from a person with a genetic disease is:
TAG TAA CCA CCC AGG
The possible codons for some amino acids are shown in the table.
Amino acid
Codons
glycine
GGU GGC GGA GGG
isoleucine
AUU AUC
phenylalanine
UUU UUC
serine
UCU UCC UCA UCG
Which amino acid is missing from a person with this genetic disease?
serine
glycine
O phenylalanine
isoleucine
Chapter 7 Solutions
Microbiology With Diseases By Taxonomy (6th Edition)
Ch. 7 - DNA replication requires a large amount of energy,...Ch. 7 - In bacteria, polypeptide translation can begin...Ch. 7 - Prob. 3TMWCh. 7 - Prob. 4TMWCh. 7 - Clinical Case Study Deadly Horizontal Gene...Ch. 7 - Which of the following is most likely the number...Ch. 7 - Which of the following is a true statement...Ch. 7 - Prob. 3MCCh. 7 - Prob. 4MCCh. 7 - Prob. 5MC
Ch. 7 - Prob. 6MCCh. 7 - Prob. 7MCCh. 7 - Prob. 8MCCh. 7 - Prob. 9MCCh. 7 - Prob. 10MCCh. 7 - Which of the following is not a mechanism of...Ch. 7 - Prob. 12MCCh. 7 - Prob. 13MCCh. 7 - Which of the following are called jumping genes?...Ch. 7 - Prob. 15MCCh. 7 - Prob. 16MCCh. 7 - Prob. 17MCCh. 7 - Prob. 18MCCh. 7 - Prob. 19MCCh. 7 - Prob. 20MCCh. 7 - Prob. 21MCCh. 7 - Prob. 22MCCh. 7 - Prob. 23MCCh. 7 - Prob. 24MCCh. 7 - The trp operon is repressible. This means it is...Ch. 7 - The three steps in RNA transcription are...Ch. 7 - Prob. 2FIBCh. 7 - Prob. 3FIBCh. 7 - Prob. 4FIBCh. 7 - An operon consists of ____________,...Ch. 7 - Prob. 6FIBCh. 7 - A daughter DNA molecule is composed of one...Ch. 7 - Prob. 8FIBCh. 7 - Prob. 9FIBCh. 7 - ____________ is a recombination event that occurs...Ch. 7 - Prob. 11FIBCh. 7 - Prob. 12FIBCh. 7 - Prob. 1SACh. 7 - Prob. 2SACh. 7 - Prob. 3SACh. 7 - Polypeptide synthesis requires large amounts of...Ch. 7 - Prob. 5SACh. 7 - Prob. 6SACh. 7 - Prob. 7SACh. 7 - Prob. 8SACh. 7 - Describe how DNA is packaged in both prokaryotes...Ch. 7 - Prob. 10SACh. 7 - Prob. 11SACh. 7 - Prob. 12SACh. 7 - On the figure below, label DNA polymerase I, DNA...Ch. 7 - Prob. 2VICh. 7 - Prob. 3VICh. 7 - If molecules of mRNA have the following nucleotide...Ch. 7 - A scientist uses a molecule of DNA composed of...Ch. 7 - Prob. 3CTCh. 7 - Prob. 4CTCh. 7 - Prob. 5CTCh. 7 - Suppose that the E. coli gene for the lac operon...Ch. 7 - Prob. 7CTCh. 7 - Prob. 8CTCh. 7 - Prob. 9CTCh. 7 - How can knowledge of nucleotide analogs be useful...Ch. 7 - The endosymbiotic theory states that mitochondria...Ch. 7 - Prob. 12CTCh. 7 - Prob. 13CTCh. 7 - Prob. 14CTCh. 7 - What DNA nucleotide triplet codes for codon UGU?...Ch. 7 - Prob. 17CT
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- The sequence of a polypeptide is determined by the order of codons that specify the amino acids in the polypeptide. How many different sequences of codons can specify the polypeptide sequence methionine-histidine-lysine? (Use the table to find the number of possibilities.) SECOND BASE UAU UACFTyrosine (Tyr) UAA -Stop codon UAG -Stop codon UUUL UGU Cysteine (Cys) UCU uc UCA FSerine (Ser) uca Uuc Phenylalanine (Phe) UUAL Leucine (Leu) CAU CAC CAA Glutamine (Gin) CAGF UGA -Stop codon uaa -Tryptophan (Trp) CGU сос CGA FArginine (Arg) CU CU Histidine (His) CuA FLeucine (Leu) Cua) Proline (Pro) CCA cca AAU Asparagine (Asn) AGU Serine (Ser) AGC AUU ACU ACC Threonine (Thr) AACF AAA AAGLysine (Lys) AUC Fisoleucine (lle) AUA Methionine (Met) AUG - Start codon ACA ACG AGA AGGFArginine (Arg) GU GACAspartic acid (Asp) GGA GAA Glutamic acid (Glu) Gaa) GcU -Valine (Val) G GUA GCA FAlanine (Ala) Glycine (Gly) 8. 1 4 THIRD BASE 2. FIRST BASEarrow_forwardHow many cases are there in which it would be possible to identify the first two nucleotides of a codon if the amino acid specified by it is known?arrow_forwardThe amino acid glycine is encoded by four codons: GGA, GGC, GGG, and GGU. Which of the following statements correctly explains this fact? The glycine anticodon contains the sequence CC, but the 5' base of the anticodon can pair nonspecifically with the 3' base of the codon. The glycine anticodon contains the sequence CC, but the 3' base of the anticodon can pair nonspecifically with the 5' base of the codon. Glycine tRNA has four anticodons, and the appropriate anticodon specifically pairs with the correct codon. There are four tRNAs for glycine, each of which has an anticodon that specifically pairs with the correct codon. all of the abovearrow_forward
- a) b) Shown below is a DNA sequence that encodes for a section of a protein. Please write the amino acid sequence using the three letter codes for this section. 5' ATG ACT CTC TCC TGG GGC ATC CGA TAA 3' What would the second codon be changed to if it was both a silent mutation and a transition mutation? Please write an anticodon in 5' to 3' direction that would recognize both the original second codon and the mutated second codon.arrow_forwardA nonsense mutation is a substitution mutation that creates a chain-terminating codon in the mRNA corresponding to the mutant gene. Identify three substitution mutations that could change a tryptophan codon to a nonsense triplet.arrow_forwardA polypeptide has the following amino acid sequence: Met-Ser-Pro-Arg-Leu-Glu-Gly The amino acid sequence of this polypeptide was determined in a series of mutants listed in parts a through e. For each mutant, indicate the type of mutation that occurred in the DNA (single-base substitution, insertion, deletion) and the phenotypic effect of the mutation (nonsense mutation, missense mutation, frameshift, etc.). a. Mutant 1: Met-Ser-Ser-Arg-Leu-Glu-Gly b. Mutant 2: Met-Ser-Pro c. Mutant 3: Met-Ser-Pro-Asp-Trp-Arg-Asp-Lys d. Mutant 4: Met-Ser-Pro-Glu-Gly e. Mutant 5: Met-Ser-Pro-Arg-Leu-Leu-Glu-Glyarrow_forward
- List all possible codons present in a ribonucleotide polymer containing U and G in random sequence. Which amino acids are encoded by this RNA?arrow_forwardConsider the tryptophan codon 5′ - UGG - 3′ in the standard genetic code . Can a single base change in this codon create a synonymous mutation? Can a single base change in this codon create a nonsense codon?arrow_forwardThe genetic disorder sickle-cell anemia occurs when the amino acid valine takes the place of glutamate during translation of a hemoglobin chain. Using the table of codons below, determine the mutation in DNA that produces this disorder. 1st position ✓ U C A G Select one: U C serine phenylalanine phenylalanine serine leucine serine leucine serine leucine leucine leucine leucine isoleucine isoleucine isoleucine methionine Table of mRNA Codons 2nd position valine valine valine valine proline proline proline proline alanine alaninc alanine alanine A tyrosine tyrosine a. CUC changes to C AG b. GAA changes to GUU c. CTT changes to CAT d. C A G changes to CTC stop stop threonine asparagine threonine asparagine threonine threonine histidine histidine arginine arginine glutamine arginine glutamine arginine lysine lysine G cysteine cysteine stop tryptophan aspartate aspartate glutamate glutamate serine serine arginine arginine glycine glycine glycine glycine 3rd position DCMO U С A G U C A G…arrow_forward
- If the sequence of amino acids encoded by a strand of DNA is serine-alanine-lysine-leucine, what is the order of bases in the sense strand of DNA? Use the codon chart below to help you: second letter A G UAU Tyr UGU UUU UCU Phe Сys UUC UCC UAC UGC Ser UAA stop |UGA stop | A UAG stop UGG Trp UUA UCA UUG Leu G UCG CUU CCU CAU CGU His CUC ССС САС CGC Leu Pro Arg CUA ССА САА CGA Gln CUG CCG CAG CGG AUU ACU AAU AGU Asn Ser AUC le A AUA AAC AAA AGC AGA Arg АСС Thr ACA AUG Met | ACG AAG Lys AGG GUU GCU GAU GGU Asp GUC Val GUA GAC S GAA Glu GCC GGC Gly GGA Ala GCA GUG J GCG GAG GGG) O 3' AGACGTTTCAAT 5' O 3' UGUGCAAAGUUA 5' О 5 TGTGCTTТCТТА 3' first letter UCAG UCAG PCAG third letterarrow_forwardThere are four codons that encode threonine. Consider the leader sequence in Figure 31.22A. What codons are used and with what frequency?arrow_forwardListed below are five amino acids. Use the genetic code to determine the exact codon for each amino acid. A point mutation at the genetic level in each codon results in the change indicated. For each mutation, indicate whether it is due to a transition or a transversion, and then indicate the effect of each mutation at the protein (amino acid level) (i.e. silent, nonsense, missense). In addition, Please note, each of the three lines above an amino acid represents a single RNA base. For example, when you look at the codon chart AUG would stand for Met (methionine) Lys 1 Glu Ile 3 Stop Ile 4.arrow_forward
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