The biosafety level (BSL) for most introductory microbiology laboratories is
What is 1
100
Most bacteria grow best at this pH
What is 7
100
the length of time needed for a cell to divide
What is generation time
100
psychrophile grows best at _____ C
What is 10
100
removal or destruction of ALL forms of microbial life is called
What is sterilization
200
a sequence of nucleotides in DNA that codes for a functional product
What is a JENE :)
200
Obligate anaerobes are killed by this
What is oxygen
200
carries the coded information for making specific proteins from DNA to ribosomes
What is mRNA
200
enzyme produced in response to the presence of a substrate is called a(n)
What is inducible enzyme
200
Mutations in which one or a few nucleotide pairs are deleted or inserted in the DNA are called
What is frameshift mutations
300
Salts and sugars work to preserve foods by creating a __________ environment
What is hypertonic
300
enzyme that copies DNA to make a molecule of RNA
What is RNA polymerase
300
An experiment began with 8 cells and ended with 128 cells. How many generations did the
cells go through?
What is 4
300
lowest temperature at which all of the microorganisms in a particular liquid suspension will be killed in 10 minutes
What is thermal death point
300
population of cells carrying a desired plasmid is called a
What is clone
400
The use of computer technology to compare and analyze genome sequence
What is BIOJENFORMATICS
400
Conjugation transfers DNA __________, Reproduction transfers DNA ___________
What is horizontally, vertically
400
You have a small gene that you wish replicated by PCR. After 4 replication cycles, how many double-stranded DNA molecules do you have?
What is 16
400
a taxon composed of one or more species and below family
What is genus
400
Fossil evidence indicates that prokaryotic cells first existed on the Earth
What is 3.5 Billion YEARS ago.. thats a long time ago friends.
500
How is UV damage to DNA repaired?
What is cut out and replaced
500
During which growth phase will gram-positive bacteria be most susceptible to penicillin?
What is log phase... do you know why?
500
Into which group would you place a unicellular organism that has 70S ribosomes and a peptidoglycan cell wall
What is bacteria
500
Which of the following places the steps in the PCR procedure in the correct order?
1) Incubate at 60°C for primer hybridization.
2) Incubate at 94°C to denature DNA strands;
3) Incubate at 72°C for DNA synthesis;