Microbiology: An Introduction (13th Edition)
13th Edition
ISBN: 9780134605180
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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Textbook Question
Chapter 8, Problem 3R
Match the following examples of mutagens.
| Column A | Column B |
| ___a. A mutagen that is incorporated into DNA in place of a normal base | 1. Frameshift mutagen |
| ___b. A mutagen that causes the formation of highly reactive ions | 2. Nucleoside analog |
| ___c. A mutagen that alters adenine so that it base-pairs with cytosine | 3. Base-pair mutagen |
| ___d. A mutagen that causes insertions | 4. Ionizing radiation |
| ___e. A mutagen that causes the formation of pyrimidine dimers | 5. Nonionizing radiation |
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Match each of the terms in the left column to the bestfitting phrase from the right column.a. exome 1. a discrete part of a protein that provides a unitof functionb. de novo gene 2. a nonfunctional member of a gene familyc. gene desert 3. the joining together of exons in a gene indifferent combinationsd. pseudogene 4. most frequent residues, either nucleotide oramino acid, found at each position in asequence alignmente. syntenic block 5. set of genes related by processes ofduplication and divergencef. orthologs 6. chromosomal region with the same genes inthe same order in two different speciesg. naturalselection7. genes with sequence similarities in twodifferent species that arose from a commonancestral geneh. consensussequence8. genes that arose by duplication within aspeciesi. gene family 9. genomic DNA sequences containing exonsj. paralogs 10. gene-poor region of the genomek. alternativeRNA splicing11. recently evolved from intergenic DNAsequencesl. protein domain 12. progressive…
I.
The DNA template, 3'–CGTTACCCGAGCOCGTACGATTAGG–5', was exposed to a mutagen,
resulting in the following three templates.
2.
A.
3'–CGTTACCCGAGCCGTAACGATTAGG-5' nserti on
leuding to frame shift
B. 3-CGTTACCCGATCCGTACGATTAGG–5' Point - Transversin
C.
3'-CGTTACCCGAGCCGTTCGATTAGG–5'
Transition
I. Transcribe and translate each template and write down the primary sequence of the resulting
polypeptide/protein.
Describe how each of the mutations will affect the final protein product from the
corresponding template. N
met -gla - Ser- Ala -cys -Stup-d
Predict whether gene expression (from initiation of transcription to final protein product) would be
faster in a prokaryotic or eukaryotic cell. Explain your answer.
Original DNA Sequence:
TACAC CTTGG CGACGACT...
MRNA Sequence:
Amino Acid Sequence:
Mutated DNA Sequence #5 TACACCTT G G GACGACT... (Highlight the change)
What's the mRNA sequence?
What will be the amino acid sequence?
Will there likely be effects?
What type of mutation is this?
1. Which type of mutation is responsible for new variations of a trait?
2. Which type of mutation does not result in an abnormal amino acid sequence?
3.
Which type of mutation stops the translation of an mRNA molecule?
NO
Chapter 8 Solutions
Microbiology: An Introduction (13th Edition)
Ch. 8 - Briefly describe the components of DNA, and...Ch. 8 - DRAW IT Identify and mark each of the following on...Ch. 8 - Match the following examples of mutagens. Column A...Ch. 8 - The following is a code for a strand of DNA. a....Ch. 8 - Prob. 5RCh. 8 - Identify when (before transcription, after...Ch. 8 - Which sequence is the best target for damage by UV...Ch. 8 - You are provided with cultures with the following...Ch. 8 - Why are mutation and recombination important in...Ch. 8 - NAME IT Normally a commensal in the human...
Ch. 8 - Match the following terms to the definitions in...Ch. 8 - Match the following terms to the definitions in...Ch. 8 - Feedback inhibition differs from repression...Ch. 8 - Bacteria can acquire antibiotic resistance by all...Ch. 8 - Suppose you inoculate three flasks of minimal...Ch. 8 - Plasmids differ from transposons in that plasmids...Ch. 8 - Mechanism by which the presence of glucose...Ch. 8 - The mechanism by which lactose controls the lac...Ch. 8 - Two offspring cells are most likely to inherit...Ch. 8 - Which of the following is not a method of...Ch. 8 - Nucleoside analogs and ionizing radiation are used...Ch. 8 - Replication of the E. coli chromosome takes 40 to...Ch. 8 - Pseudomonas has a plasmid containing the mer...Ch. 8 - Ciprofloxacin, erythromycin, and acyclovir are...Ch. 8 - HIV, the virus that causes AIDS, was isolated from...Ch. 8 - Human herpesvirus-8 (HHV-8) is common in parts of...
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