Immunology

Which of the following is a difference between PCR and RT-PCR?

Which of the following is a difference between PCR and RT-PCR?

Which of the following is a difference between PCR and RT-PCR?
 
  a. RT-PCR amplifies much larger quantities of DNA than PCR
  b. RT-PCR DNA is converted into RNA
  c. RT-PCR RNA is converted into cDNA
&

aleja98   142   2 Replies

aleja98

Single nucleotide polymorphisms are (Multiple Choice)

Single nucleotide polymorphisms are (Multiple Choice)

Single nucleotide polymorphisms are
 
  a. mutations that occur in a single individual
  b. nucleic acid probes that can detect mutations in different sequences of DNA
  c. sites in the genome where the DNA se

malagonvarney   111   1 Reply

pm_me_ur_stands

One of the major drawbacks of amplification techniques is that they

One of the major drawbacks of amplification techniques is that they

One of the major drawbacks of amplification techniques is that they
 
  a. are much more costly than hybridization techniques
  b. are not as sensitive as blotting techniques
  c. can easily produce false posi

country3313   124   1 Reply

jester1997!

The branched DNA test (bDNA)

The branched DNA test (bDNA)

The branched DNA test (bDNA)
 
  a. involves the use of special oligonucleotides extenders
  b. is used in FISH to visualize DNA in a particular tissue
  c. allows the sequencing of a stretch of DNA by bypassi

hockeyguy9   93   1 Reply

sylviag14

In RNA, adenine binds to:

In RNA, adenine binds to:

In RNA, adenine binds to:
 
  a. guanine
  b. thymine
  c. uracil
  d. cytosine

agilleland   136   1 Reply

TSparkman10

In DNA, thymine binds to:

In DNA, thymine binds to:

In DNA, thymine binds to:
 
  a. guanine
  b. adenine
  c. uracil
  d. cytosine

malagonvarney   138   1 Reply

hillaryana

In general, to be highly specific for a particular stretch of DNA, probes must contain at least ...

In general, to be highly specific for a particular stretch of DNA, probes must contain at least ...

In general, to be highly specific for a particular stretch of DNA, probes must contain at least
 
  a. 5 bases
  b. 7 bases
  c. 20 bases
  d. 100 bases

cillapris   104   1 Reply

Tanzious02

The advantage of non-PCR amplification techniques over PCR is that non-PCR amplification techniques ...

The advantage of non-PCR amplification techniques over PCR is that non-PCR amplification techniques ...

The advantage of non-PCR amplification techniques over PCR is that non-PCR amplification techniques can
 
  a. amplify much larger stretches of DNA
  b. be carried out at a constant temperature
  c. be used on

Abisf   146   1 Reply

afifazuki

Which of the following techniques enables the identification of a particular sequence of nucleic ...

Which of the following techniques enables the identification of a particular sequence of nucleic ...

Which of the following techniques enables the identification of a particular sequence of nucleic acid on a cell or tissue?
 
  a. northern blot
  b. western Blot
  c. FISH
  d. southern blot

Argentina   116   2 Replies

Argentina

The major difference between southern blotting and northern blotting is that

The major difference between southern blotting and northern blotting is that

The major difference between southern blotting and northern blotting is that
 
  a. southern blotting can analyze much larger pieces of DNA
  b. northern blotting can detect DNA on a living cell or tissue
  c.

QiTian   166   1 Reply

ztboyce

Denaturation or melting DNA refers to

Denaturation or melting DNA refers to

Denaturation or melting DNA refers to
 
  a. converting DNA into a liquid form so it can be separated by electrophoresis
  b. creating RNA/DNA hybrid molecules
  c. separating a DNA sequence into individual am

mcke   116   1 Reply

hillaryana

Which of the following hybridization techniques does not require separation of different fragments ...

Which of the following hybridization techniques does not require separation of different fragments ...

Which of the following hybridization techniques does not require separation of different fragments of nucleic acids?
 
  a. northern blot
  b. dot blot
  c. southern blot
  d. western blot

Breionna   128   1 Reply

PinBoi

The first step in southern blotting is

The first step in southern blotting is

The first step in southern blotting is
 
  a. converting DNA into RNA
  b. cutting high molecular weight DNA into smaller pieces
  c. converting RNA into DNA
  d. radioactively labeling the DNA so it

jake08benn   111   1 Reply

yujenni16

Restriction endonucleases are (Multiple Choice)

Restriction endonucleases are (Multiple Choice)

Restriction endonucleases are
 
  a. enzymes that restrict DNA synthesis
  b. enzymes that cut DNA in specific sequences
  c. nuclear proteins that are involved in transcription
  d. components of th

bkm1   153   1 Reply

alex12098

The process of allowing single-stranded DNA to re-form into a double-stranded form is called

The process of allowing single-stranded DNA to re-form into a double-stranded form is called

The process of allowing single-stranded DNA to re-form into a double-stranded form is called
 
  a. annealing
  b. degradation
  c. denaturation
  d. amplification

GOOD2Know17   165   1 Reply

Tmheath

An alteration in the nucleic acid sequence in which a specific restriction endonuclease cuts can be ...

An alteration in the nucleic acid sequence in which a specific restriction endonuclease cuts can be ...

An alteration in the nucleic acid sequence in which a specific restriction endonuclease cuts can be detected by
 
  a. ELISA
  b. flow cytometry
  c. RFLP
  d. FISH

ttteel   121   1 Reply

Flamebrain920

Making different copies of DNA during cell division is known as

Making different copies of DNA during cell division is known as

Making different copies of DNA during cell division is known as
 
  a. DNA amplification
  b. DNA replication
  c. DNA transcription
  d. DNA annealing

Omarlate   113   2 Replies

Omarlate

Packaging, organizing, and arranging the DNA in a nucleus is carried out by

Packaging, organizing, and arranging the DNA in a nucleus is carried out by

Packaging, organizing, and arranging the DNA in a nucleus is carried out by
 
  a. ribosomes
  b. chromatin proteins such as histones
  c. tRNA
  d. mRNA

aleja98   121   1 Reply

grrgrrl

Synthesizing a protein using information from RNA is known as

Synthesizing a protein using information from RNA is known as

Synthesizing a protein using information from RNA is known as
 
  a. transcription
  b. translation
  c. replication
  d. transformation

howardgiles112   128   1 Reply

Seita

A set three of nucleotides that encodes for a specific amino acid is called

A set three of nucleotides that encodes for a specific amino acid is called

A set three of nucleotides that encodes for a specific amino acid is called
 
  a. intron
  b. histone
  c. exon
  d. codon

joker   92   1 Reply

heypeterman

Hybridization refers to (Multiple Choice)

Hybridization refers to (Multiple Choice)

Hybridization refers to
 
  a. binding a nucleic acid probe to its complementary sequence on a target nucleic acid
  b. elongating a piece of DNA during amplification
  c. opening double-stranded DNA
&nbs

Abisf   100   1 Reply

jkost7

Transferring information from DNA to RNA involves

Transferring information from DNA to RNA involves

Transferring information from DNA to RNA involves
 
  a. transformation
  b. transcription
  c. insertion
  d. translation

mazdacx5   89   1 Reply

vazadir

Which of the following is true regarding keeping food in a laboratory refrigerator?

Which of the following is true regarding keeping food in a laboratory refrigerator?

Which of the following is true regarding keeping food in a laboratory refrigerator?
 
  a. The food has not yet been opened.
  b. The food is in an airtight container.
  c. The food is rinsed before eating.

Jayfan25   119   1 Reply

CrazyNaut

Which of the following is a major difference between RNA and DNA? RNA

Which of the following is a major difference between RNA and DNA? RNA

Which of the following is a major difference between RNA and DNA? RNA
 
  a. has guanine instead of cytosine
  b. has adenine instead of cytosine
  c. has uracil instead of thymine
  d. has cytosine

haileyrasmussen   116   1 Reply

asistrunk13

What should the source patient be tested for after a needlestick if he or she agrees?

What should the source patient be tested for after a needlestick if he or she agrees?

What should the source patient be tested for after a needlestick if he or she agrees?
 
  a. hepatitis A, B, C; HIV; AST/ALT; and alkaline phosphatase
  b. hepatitis B and C, HIV, AST/ALT, and alkaline phosphatase

ttteel   89   2 Replies

ttteel

If a tube of blood breaks in the centrifuge, the policy is to

If a tube of blood breaks in the centrifuge, the policy is to

If a tube of blood breaks in the centrifuge, the policy is to
 
  a. open the centrifuge immediately and clean it
  b. wait 10 minutes and then open the centrifuge to clean it
  c. wait 20 minutes and then ope

mbhound   113   1 Reply

brecool9

What is an MSDS? (Multiple Choice)

What is an MSDS? (Multiple Choice)

What is an MSDS?
 
  a. a document that contains the reactivity and toxicity information about a material
  b. a document that contains the proper first aid in case of exposure to a chemical
  c. a document th

retard23   76   1 Reply

beats51

OSHA requires that employers offer which of these vaccines to hospital employees who may be at risk ...

OSHA requires that employers offer which of these vaccines to hospital employees who may be at risk ...

OSHA requires that employers offer which of these vaccines to hospital employees who may be at risk for
 
  a. hepatitis A
  b. hepatitis B
  c. hepatitis C
  d. HIV

meaganec   84   1 Reply

nena1107

Gloves should be worn when anyone in the lab

Gloves should be worn when anyone in the lab

Gloves should be worn when anyone in the lab
 
  a. handles body fluids, blood and excreta
  b. handles potentially contaminated items
  c. opens drawers and doors in the laboratory
  d. all of the a

howardgiles112   94   1 Reply

rosie_9800

An injured person must have an unrestricted path to an eye wash station of less than what distance? ...

An injured person must have an unrestricted path to an eye wash station of less than what distance? ...

An injured person must have an unrestricted path to an eye wash station of less than what distance?
 
  a. 10 feet
  b. 20 feet
  c. 50 feet
  d. 100 feet

bwebb03   84   1 Reply

howdy95

The National Fire Protection Association Diamond has

The National Fire Protection Association Diamond has

The National Fire Protection Association Diamond has
 
  a. 4 parts: flammability, reactivity, special risks, and health risks
  b. 5 parts: flammability, reactivity, special and health risks, and infectivity
 

darrellsia   114   1 Reply

alex12098

Which of the following would have HEPA filtered air blowing into the hood?

Which of the following would have HEPA filtered air blowing into the hood?

Which of the following would have HEPA filtered air blowing into the hood?
 
  a. a chemical containment hood
  b. a biological containment hood
  c. both A and B
  d. none of the above

joker   105   1 Reply

shaebugg

Which of the following would not be procedure under universal precaution guidelines?

Which of the following would not be procedure under universal precaution guidelines?

Which of the following would not be procedure under universal precaution guidelines?
 
  a. cleaning up spills with 10 bleach
  b. wearing a lab coat in all areas in the hospital
  c. washing hands after but n

howardgiles112   74   2 Replies

howardgiles112

What is the most common way for needlestick accidents to occur?

What is the most common way for needlestick accidents to occur?

What is the most common way for needlestick accidents to occur?
 
  a. drawing blood from a child
  b. drawing blood from a prisoner
  c. recapping a needle
  d. disposing of trash from a hospital la

hockeyguy9   81   1 Reply

vonda_smith

If you are female, and receive a needlestick you should be tested for the following in the clinic ...

If you are female, and receive a needlestick you should be tested for the following in the clinic ...

If you are female, and receive a needlestick you should be tested for the following in the clinic
 
  a. antibody to hepatitis B surface antigen, HIV, hepatitis C, and tetanus
  b. hepatitis B surface antigen, HIV, hepa

malagonvarney   84   1 Reply

mojin39

The rate of seroconversion to HIV after a needle stick is _____, and the rate after a mucous ...

The rate of seroconversion to HIV after a needle stick is _____, and the rate after a mucous ...

The rate of seroconversion to HIV after a needle stick is _____, and the rate after a mucous membrane exposure is _________.
 
  a. 10, lower
  b. 10, higher
  c. 0.3, lower
  d. 0.5, lower

jeanettedavis84   119   1 Reply

nudelosr

Liquid nitrogen (Multiple Choice)

Liquid nitrogen (Multiple Choice)

Liquid nitrogen
 
  a. is inert and safe
  b. is dangerous because it can replace the oxygen in the room
  c. is explosive
  d. B and C

jeanettedavis84   70   1 Reply

grrgrrl

Risk assessment for HIV seroconversion in determining postexposure prophylaxis has

Risk assessment for HIV seroconversion in determining postexposure prophylaxis has

Risk assessment for HIV seroconversion in determining postexposure prophylaxis has
 
  a. 3 components: (1) your general health, (2) the type of exposure-needle stick or mucous membrane-and (3) the source patient's HIV health sta

retard23   86   1 Reply

alex12098

Source patients should be tested for the following

Source patients should be tested for the following

Source patients should be tested for the following
 
  a. if they give their consent, HIV, hepatitis B, hepatitis C, AST/ALT, and alkaline phosphatase levels
  b. if consent is not needed, HIV, hepatitis B, hepatitis C,

bkm1   76   1 Reply

lovely_rose_

After a needlestick in the employees clinic, a lab technician

After a needlestick in the employees clinic, a lab technician

After a needlestick in the employees clinic, a lab technician
 
  a. will immediately take you to the laboratory so you can reenact how it happened
  b. will ask you for the lot number of the needle or other medical ins

sarthaknitw   88   1 Reply

hillaryana