Microbiology Exam 3 Questions With
Correct Answers,.
RNA primer is required in rolling circle replication of plasmids - Correct
answertrue
which of the following is involved in E. coli replication termination - Correct
answerTus protein
all of the following are enzymes during bacterial DNA replication EXCEPT -
Correct answersigma factor
just like bacterial chromosome replication, plasmid rolling circle replication involves both
leading and lagging strand - Correct answerfalse
shine dalgarno sequences are complimentary to the 3' end of 16s rRNA in E. coli -
Correct answertrue
besides the nucleoid, two other kinds of DNA molecules that may be present in the
cytoplasm of bacterial cell are - Correct answerplasmids and bacteriophage
genomes
griffith used this organism to study DNA mediated transformation - Correct
answerstept. pneumoniae
all of the following are true about archae and bacteria except - Correct
answerboth are equally affected by RNA synthesis inhibitors
all of the following are true about eukaryotic genomes except - Correct
answereuk genome contain only chromosomal DNA
most bacteria contain one circular chromosome - Correct answertrue
which of the following is not true about plasmids - Correct answerwithout
them, cells will not survive
, which of the following is not a product of transcription in bacteria - Correct
answerokazaki fragment
the necessary ingredients for PCR reaction are mixed in a tube. The DNA polymerase is
from thermus aquaticus and the DNA template is from an E. coli. The newly synthesized
DNA would look like - Correct answerE. coli DNA
all of the following are required for PCR except - Correct answerDNA ligase
why would drugs that inhibit transcription only affect bacteria and not archaea even
though they are both eukaryotes? - Correct answerArchaea and Eukarya
have similar RNA polymerases that are different from bacterial RNA polymerases
antiviral drug Tamiflu cures flu by - Correct answerpreventing release of
mature viruses
a drug designed to stop protein synthesis in bacteria generally considered bacteriostatic
- Correct answertrue
MIC test - Correct answerthe lowest measure that shows no growth in the
TUBE
B-lactam antibiotic are known to have no toxicity to human cells because eukaryotic
cells - Correct answerhuman cells do not contain D-ala peptide in their
membrane
a drug designed to stop DNA synthesis of a bacteria would best be considered -
Correct answerBacteriocidal
consider an MIC result of 5 ug/ml of vancomycin for bacterial strain A, 10 ug/ml for
strain B, 15 ug/ml for strain C, and 20 ug/ml for strain D. which bacterial strain can be
interpreted as the most resistant to vancomycin? - Correct answerD
best target for development of new antibiotic against mycobacterium species would be -
Correct answermycolic acid
Correct Answers,.
RNA primer is required in rolling circle replication of plasmids - Correct
answertrue
which of the following is involved in E. coli replication termination - Correct
answerTus protein
all of the following are enzymes during bacterial DNA replication EXCEPT -
Correct answersigma factor
just like bacterial chromosome replication, plasmid rolling circle replication involves both
leading and lagging strand - Correct answerfalse
shine dalgarno sequences are complimentary to the 3' end of 16s rRNA in E. coli -
Correct answertrue
besides the nucleoid, two other kinds of DNA molecules that may be present in the
cytoplasm of bacterial cell are - Correct answerplasmids and bacteriophage
genomes
griffith used this organism to study DNA mediated transformation - Correct
answerstept. pneumoniae
all of the following are true about archae and bacteria except - Correct
answerboth are equally affected by RNA synthesis inhibitors
all of the following are true about eukaryotic genomes except - Correct
answereuk genome contain only chromosomal DNA
most bacteria contain one circular chromosome - Correct answertrue
which of the following is not true about plasmids - Correct answerwithout
them, cells will not survive
, which of the following is not a product of transcription in bacteria - Correct
answerokazaki fragment
the necessary ingredients for PCR reaction are mixed in a tube. The DNA polymerase is
from thermus aquaticus and the DNA template is from an E. coli. The newly synthesized
DNA would look like - Correct answerE. coli DNA
all of the following are required for PCR except - Correct answerDNA ligase
why would drugs that inhibit transcription only affect bacteria and not archaea even
though they are both eukaryotes? - Correct answerArchaea and Eukarya
have similar RNA polymerases that are different from bacterial RNA polymerases
antiviral drug Tamiflu cures flu by - Correct answerpreventing release of
mature viruses
a drug designed to stop protein synthesis in bacteria generally considered bacteriostatic
- Correct answertrue
MIC test - Correct answerthe lowest measure that shows no growth in the
TUBE
B-lactam antibiotic are known to have no toxicity to human cells because eukaryotic
cells - Correct answerhuman cells do not contain D-ala peptide in their
membrane
a drug designed to stop DNA synthesis of a bacteria would best be considered -
Correct answerBacteriocidal
consider an MIC result of 5 ug/ml of vancomycin for bacterial strain A, 10 ug/ml for
strain B, 15 ug/ml for strain C, and 20 ug/ml for strain D. which bacterial strain can be
interpreted as the most resistant to vancomycin? - Correct answerD
best target for development of new antibiotic against mycobacterium species would be -
Correct answermycolic acid
