Microbiology: Principles and Explorations
10th Edition
ISBN: 9781119390114
Author: Black
Publisher: WILEY
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Chapter 2, Problem 2.2SC
T–F: All of these bacteria on or in the human body have 100 times as many genes as the total number from human cells.
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Recognize the impact of DNA mutations.
Summarize the process of genetic translation.
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S. pyogenes may contain deoxyribonuclease. What is the role of this enzyme?
Deoxyribonuclease facilitates the production of DNA from bacterial cells.
Deoxyribonuclease is an enzyme that replicates DNA and then proteins.
O Deoxyribonuclease breaks down proteins and damages the cell.
O Deoxyribonuclease breaks down DNA released from damaged cells.
Question 4
Which organism can produce pyocyanin?
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A. Your laboratory requires you to look into the gene identified from Salmonella enterica
subsp. enterica serovar Typhimurium str. LT2. The gene has been deposited in NCBI and
annotated as STM3777 cytoplasmic protein [ Salmonella enterica subsp. enterica serovar
Typhimurium str. LT2 ]; GenBank: AE006468.2.
1. Where is this gene location in the bacterial genome?
2. What is the length of the gene?
3. Obtain the FASTA format of this gene sequence.
4. Translate the nucleotide sequence to protein sequence.
5. Can you postulate the function of this gene using bioinformatics tool? Try both nucleotide
blast and protein blast.
Chapter 2 Solutions
Microbiology: Principles and Explorations
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