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MICR 290 Midterm Exam | Verified Questions & A+
Answers
Questions and Mark scheme
Version: Final 1.1
, presence of this structure in spirochetes gives them penetrating moving power into tissues - ✔✔axial filament
the process by which DNA gets copies into another strand of DNA - ✔✔replication
Transcription - ✔✔process by which DNA is copied into RNA
process by which a phage transfers some DNA of the host organism from one cell to another through normal infection
process - ✔✔transduction
process of fermentation in bacteria may include generation of each of the following molecules except - ✔✔glucose
process of gene exchange between 2 live bacteria by way of sex pilus - ✔✔conjugation
reverse transcriptase enzyme inhibitor category of drugs which are used for treatment of HIV are safe to be used in
human because - ✔✔human cells do not have reverse transcriptase
round shaped bacteria that appear as purple clumps after gram staining ate - ✔✔staphylococci
select the correct statement regarding the polymerase chain reaction - ✔✔it is a technique to make many copies of DNA
in vitro using small amount of DNA sample
select the INCORRECT statement about semisynthetic drugs - ✔✔they are unstable in acidic environments
7 lab test tubes containing 1 ml of a nutrient broth were inoculated with same amount of bacterial culture. after that,
quantities of 2, 4, 8, 16, 32, 64, 128 micrograms of antibiotic X were placed in tubes 1 to 7 respectively. After 24 hours of
inoculation, tubes 1-4 showed bacterial growth but tubes 5-7 had no bacterial growth. what is the minimum inhibitory
concentration of antibiotic X? - ✔✔32 microorganisms per ml
site in bacteria where electron transport chain for synthesis of ATP is located - ✔✔cytoplasmic membrane
streptococci growing on blood agar and causing complete hemolysis of the red blood cells are called - ✔✔Beta-
hemolytic streptococci
MICR 290 Midterm Exam | Verified Questions & A+
Answers
Questions and Mark scheme
Version: Final 1.1
, presence of this structure in spirochetes gives them penetrating moving power into tissues - ✔✔axial filament
the process by which DNA gets copies into another strand of DNA - ✔✔replication
Transcription - ✔✔process by which DNA is copied into RNA
process by which a phage transfers some DNA of the host organism from one cell to another through normal infection
process - ✔✔transduction
process of fermentation in bacteria may include generation of each of the following molecules except - ✔✔glucose
process of gene exchange between 2 live bacteria by way of sex pilus - ✔✔conjugation
reverse transcriptase enzyme inhibitor category of drugs which are used for treatment of HIV are safe to be used in
human because - ✔✔human cells do not have reverse transcriptase
round shaped bacteria that appear as purple clumps after gram staining ate - ✔✔staphylococci
select the correct statement regarding the polymerase chain reaction - ✔✔it is a technique to make many copies of DNA
in vitro using small amount of DNA sample
select the INCORRECT statement about semisynthetic drugs - ✔✔they are unstable in acidic environments
7 lab test tubes containing 1 ml of a nutrient broth were inoculated with same amount of bacterial culture. after that,
quantities of 2, 4, 8, 16, 32, 64, 128 micrograms of antibiotic X were placed in tubes 1 to 7 respectively. After 24 hours of
inoculation, tubes 1-4 showed bacterial growth but tubes 5-7 had no bacterial growth. what is the minimum inhibitory
concentration of antibiotic X? - ✔✔32 microorganisms per ml
site in bacteria where electron transport chain for synthesis of ATP is located - ✔✔cytoplasmic membrane
streptococci growing on blood agar and causing complete hemolysis of the red blood cells are called - ✔✔Beta-
hemolytic streptococci
