Part 3 Flashcards
What is horizontal gene transfer
Dna passed from prokaryotic cells to eukaryotic cells
What are good culture conditions for sterility
Tempature
Oxygen level
PH
What is the purpose of sterile conditions in fermenters
Reduces competition between desired microorganisms and unwanted microorganisms- reduce risk of spoiling the product
What is the total and viable cell count
Total= living and dead
Viable= alive cells
What happens during the lag phase?
Enzymes are being induced- replicating their DNA for cell division
What is the log phase?
Cells are growing at their maximum rate
What is the stationary phase? S
Secondary metabolites become toxic
What is the death phase?
The lack of subsrates and the toxic accumulation of metabolites which causes cells death
What is the purpose of recombinant dna technology
Transfer gene sequences from one organism to another or one species to another
