DNA techniques Flashcards

exam 1

1
Q

narcolepsy

A

condition characterized by sudden and uncontrollable attacks of sleep

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2
Q

restriction endonucleases

A

cuts the DNA of the phage into fragments

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3
Q

protected by methylation

A

bacterial DNA

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4
Q

isolated from ecoli

A

ECO R1

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5
Q

Gel elctrophoresis run from one charge to the other

A

from negative to positive

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6
Q

size of molecules on a gel electropherisis

A

from larger to smaller molecules

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7
Q

SNoW DRoP

A

southern blot: DNA
Northern blot: RNA
Western blot: Proteins

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8
Q

In a southern blot, duplex DNA needs to be turned into

A

single stranded DNA

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9
Q

southern blot, hybrydization is succesful

A

when the DNA fragment that we want appears in the landmark according to its size

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10
Q

Detection of a _____________ using Southern Blot

A

deletion

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11
Q

Detecting ____________ _______ Via Southern Blot

A

trinucleotide expansion

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12
Q

CGG repeat region

A

Fragile X

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13
Q

Trinucleotide expansion has a greater molecular weight as severity increases

A

southern blot

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14
Q

all individuals has the same mutation

A

sickle cell anemia

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15
Q

detection of the _______ _______ associated with sickle cell anemia using ____________ ________

A

point mutation

southern blot

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16
Q

single point mutation A–> T

A

sickle cell anemia

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17
Q

molecular weight changes from 1.1 to 1.3 in a southern blot

A

detection of sickle cell anemia

18
Q

polymorphisms serve as

A

DNA fingerprinting

19
Q

differences in polymorphisms

A

restriction fragment length polymorhism

20
Q

altered RFLP

A

associated with possible mutation and diseases

21
Q

FISH

A

Fluorescence in situ hybridization

22
Q

to check for the presence, absence or copy member of the chromosome

23
Q

____ is separated according to size by electrophoresis through denaturing gel and transferred to a solid support

24
Q

SDS wash

A

Western blots–> protein neutralizing the charge

25
antibodies are used for specificity
western blot
26
DNA band shifts
to recognize DNA that are bound to protein
27
used to establish where a given protein binds to DNA
DNA footprinting
28
allows one to use the PCR technique to amplify RNA
RT-PCR
29
Amplify DNA
PCR
30
EcoRI makes sticky ends, foreign DNA inserted and then use DNA ligase to join the fragments
DNA cloning
31
constructed directly from fragments of genomic DNA
genomic library
32
derived from mRNA; dthe mRNA is converted to DNA by reverse transcriptase and then cloned
cDNA library
33
single stranded DNA can potentially hybridize to any DNA molecule that contains complementary sequences
Heat denaturation
34
After cooling, two different oligonucleotides (primers) are annealed to their complementary sequences sin the denatured DNA
Annealing
35
annealed primers by a heat stable DNA polymerase (dNTPS are also required)
extension
36
RT-PCR based test that predicts the likelihood of cancer recurrence
oncotype DX
37
single strand confirmation polymorphism
confirmational difference between nucleotide sequences.
38
involves sequencing of genome fragments that are on a chip allowing an entire genome to be sequenced at once
next generation sequencing
39
chain termination DNA sequencing method uses _________ to chain terminate during DNA _____ and typically _____ dyes are used
uses dideoxynucleotide to chain terminate during replication using fluorescent dyes
40
fragments of the genome
genomic library
41
derived from mRNA being expressed in a given tissue
cDNA
42
used when a mutation changes the folded structure of single stranded DNA as measured by gel-elec.
single strand confirmation