Gene transfer in bacteria by transformation has the following characteristics: a majority of the donor genes are transfe
Posted: Wed Jul 06, 2022 10:21 am
Gene transfer in bacteria by transformation has the followingcharacteristics:
a majority of the donor genes are transferred
it involves a plasmid
it depends on phage infection of the recipient cell
it can be carried out using free DNA extracted from thedonor
The necessary ingredients for DNA synthesis in the PCR procedurecan be mixed together in a test tube. The DNA polymerase is from________ like Thermus aquaticus and the _______ is from any cell ofinterest like Coranavirus in the case of COVID tests.
thermophilic bacteria; template protein
template protein; thermophilic bacteria
thermophilic bacteria; template DNA/RNA
template DNA/RNA; thermophilic bacteria
thermophilic bacteria; virus
Which of the following mutation is likely to be the most lethalform?
back mutation
missense mutation
silent mutation
nonsense mutation
viruses
"When a person is prescribed an antibiotic for a bacterialillness, but they stop taking the antibiotic before they finish it,what population of bacteria remain in their body?"
the ones most sensitive to the antibiotic
the ones most resistant to the antibiotic
a mixture of the ones most sensitive and resistant to theantibiotic
there is no way to predict ones that will remain
all of these
Staphylococcus aureus is among a few species that can grow inthe host s skin and cause infections like impetigo because:
it can tolerate an acid pH
it prefers abundant oxygen
it cannot tolerate body temperature
it can tolerate salty conditions
Leukocidins that are toxic to WBCs usually produced byStreptococcus & Staphylococcus are examples of antiphagocyticfactors
True
False
Which of the following has an oligodynamic property?
Phenol
silver amalgam
hydrogen peroxide
ethyl alcohol
Griffith s experiment showed that heat killed S strain ofStreptococcus pneumonia transferred DNA to live R strain and killedmice. This procedure of DNA transfer is know as:
transformation
transduction
conjugation
all of these
plz answer all and label thanks
a majority of the donor genes are transferred
it involves a plasmid
it depends on phage infection of the recipient cell
it can be carried out using free DNA extracted from thedonor
The necessary ingredients for DNA synthesis in the PCR procedurecan be mixed together in a test tube. The DNA polymerase is from________ like Thermus aquaticus and the _______ is from any cell ofinterest like Coranavirus in the case of COVID tests.
thermophilic bacteria; template protein
template protein; thermophilic bacteria
thermophilic bacteria; template DNA/RNA
template DNA/RNA; thermophilic bacteria
thermophilic bacteria; virus
Which of the following mutation is likely to be the most lethalform?
back mutation
missense mutation
silent mutation
nonsense mutation
viruses
"When a person is prescribed an antibiotic for a bacterialillness, but they stop taking the antibiotic before they finish it,what population of bacteria remain in their body?"
the ones most sensitive to the antibiotic
the ones most resistant to the antibiotic
a mixture of the ones most sensitive and resistant to theantibiotic
there is no way to predict ones that will remain
all of these
Staphylococcus aureus is among a few species that can grow inthe host s skin and cause infections like impetigo because:
it can tolerate an acid pH
it prefers abundant oxygen
it cannot tolerate body temperature
it can tolerate salty conditions
Leukocidins that are toxic to WBCs usually produced byStreptococcus & Staphylococcus are examples of antiphagocyticfactors
True
False
Which of the following has an oligodynamic property?
Phenol
silver amalgam
hydrogen peroxide
ethyl alcohol
Griffith s experiment showed that heat killed S strain ofStreptococcus pneumonia transferred DNA to live R strain and killedmice. This procedure of DNA transfer is know as:
transformation
transduction
conjugation
all of these
plz answer all and label thanks