M. Bacterial Genetic Recombination Events Flashcards
Conjugation
Cells trade genetic info by forming a sex pili between cells
New organism
Recombinant (new genes)
Fertility plasmid
‘F’ factor
Genes that will code for production of sex pili
Resistance plasmid
‘R’ factor
Genes will code for production of antibiotic resistance proteins
Ex of resistance plasmid coding for
Beta lactamase
Virulence plasmids
Carries genes that will allow the bacteria to be more pathogenic
Virulence plasmid:
‘V’
Genes that code for production of capsules
Capsules make bacteria more pathogenic by
Helping stick - adhere to host
Resist phagocytosis
Genes that code for the production of alpha toxin
Beta hemolysis
Genes that code for the production of coagulase:
What is coagulase
Enzyme that clots plasma (form clots)
Also helps hide the cell
Genes that code for the production of fibrinolysin:
What is fibrinolysin
Digestive enzyme that destroys clots (host)
Genes that code for the production of collagenase:
What is collagenase?
Digest collagen
Flesh eater
Transformation
Uptake free DNA from dead cells
Griffiths experiment involved what bacteria
Streptococcus pneumoniae
Streptococcus pneumoniae:
‘S’ strain
Smooth
Capsulated
Pathogenic- cause illness
Must have virulence plasmid
