final Flashcards
Small, circular DNA not part of genome
Functions: antibiotic resistance, virulence, nitrogen fixation, etc.
Transformation: external DNA transferred to or taken up by organism
Addition of genes on plasmid DNA changes phenotype
Genetic engineering:
Mutation: change in DNA sequence
Gene cloning or editing: new genes added to or replace genes on plasmid
Requires DNA strands to be cut
plasmids
AKA restriction endonucleases Cut double-stranded DNA Specific cut sites: palindrome sequences Read same in both directions (radar, madam, etc.) Read same on both DNA backbones Results in sticky ends: backbones cut at different locations EcoRI Naturally occurs in E. coli Creates 4 nucleotide-long sticky ends
restriction enzymes
tet resistant
tet & UV resistant
tet & ampicillin resistant
each bacteria transformed with plasmids for these phenotypes
what do serological pipettes measure?
milliliters (mL)
osmosis
net movement of water across a semipermeable;e membrane
hemolysis
destruction on red blood cells
spectrometer
measures how light reacts with absorbance of substances
diffusion
net movement of particles from an area of high concentration to low concentration
concentrations are relative to ______.
another solution
is concentration an example of discrete data or continuous data?
continuous
In lab you measure the absorbance at specific time intervals in order to calculate concentration. What is the independent variable?
time
when plotting continuous data, would you use a scatter plot or a bar graph?
scatterplot
how do enzymes catalyze a reaction without being consumed?
by lowering the activation energy
what differs between the general model and the induced-fit model of enzyme catalysts?
enzyme changes conformation in induced fit model
benzoquinone (substrate, product, or enzyme?)
product
catechol (substrate, product, or enzyme?)
substrate
catecholase (substrate, product, or enzyme?)
enzyme
what was the main dependent variable from the enzyme lab?
benzoquinone concentration
null hypothesis
the amount of sunlight per day throughout the year will not significantly effect plant growth