NRSC 2200 EXAM 1 QUESTIONS WITH
100% VERIFIED ANSWERS!!
1 of 104
Term
What is a sample?
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entire collection of cases of interest subset of the population
multiple choice question. all items of interest
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2 of 104
Term
How do you dispense liquid with a pipette?
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You add it. :)
Either on the side of the
tube or in the liquid. You remove it.
Don't know?
3 of 104
Term
What is a matched sample design?
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Rank order participants based on a certain variable then pair them and
separate them to average out that variable among the groups.
, A lab technique used to localize a sequence of DNA or RNA.
Means when a group of people (experimented on) don't know what they receive
when getting a variable. patients don't know if placebo is a treatment
Sample is homogenized in a phenol solution then centrifuged. Centrifuge
separates the lysate into three phases: lower organic phase, middle organic
phase (interphase), and an upper aqueous phase. The upper aqueous phase is
the layer that is collected.
Don't know?
4 of 104
Term
Which component in the buffer lyses cells?
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Phenol and guanidine
isothiocyanate Reverse transcriptase
Guanidine thiocyanate and
1- thioglycerol :)
Don't know?
5 of 104
, Term
What is a negative control?
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Checks that the procedure is not giving any false positives.
Usually done in within subjects design, its when the control is placed in-between
experimental conditions.
It helps to control for the effect of time on the dependent variable.
Avoids all of the control occurring at one time and all of the experiments
occurring afterwards in case there is a reason for the order to have an impact
on results.
Means when a group of people (experimented on) don't know what they receive
when getting a variable. patients don't know if placebo is a treatment
Don't know?
6 of 104
Term
What are confounding variables?
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100% VERIFIED ANSWERS!!
1 of 104
Term
What is a sample?
Give this one a try later!
entire collection of cases of interest subset of the population
multiple choice question. all items of interest
, Don't know?
2 of 104
Term
How do you dispense liquid with a pipette?
Give this one a try later!
You add it. :)
Either on the side of the
tube or in the liquid. You remove it.
Don't know?
3 of 104
Term
What is a matched sample design?
Give this one a try later!
Rank order participants based on a certain variable then pair them and
separate them to average out that variable among the groups.
, A lab technique used to localize a sequence of DNA or RNA.
Means when a group of people (experimented on) don't know what they receive
when getting a variable. patients don't know if placebo is a treatment
Sample is homogenized in a phenol solution then centrifuged. Centrifuge
separates the lysate into three phases: lower organic phase, middle organic
phase (interphase), and an upper aqueous phase. The upper aqueous phase is
the layer that is collected.
Don't know?
4 of 104
Term
Which component in the buffer lyses cells?
Give this one a try later!
Phenol and guanidine
isothiocyanate Reverse transcriptase
Guanidine thiocyanate and
1- thioglycerol :)
Don't know?
5 of 104
, Term
What is a negative control?
Give this one a try later!
Checks that the procedure is not giving any false positives.
Usually done in within subjects design, its when the control is placed in-between
experimental conditions.
It helps to control for the effect of time on the dependent variable.
Avoids all of the control occurring at one time and all of the experiments
occurring afterwards in case there is a reason for the order to have an impact
on results.
Means when a group of people (experimented on) don't know what they receive
when getting a variable. patients don't know if placebo is a treatment
Don't know?
6 of 104
Term
What are confounding variables?
Give this one a try later!
