Reporter Quencher-absorbs fluorescence given off by reporter when they are close together Oligonucleotide that is complementary to one strand of the PCR product (a) TaqMan probe During the primer annealing step, both a primer and TaqMan probe bind to the template DNA. Forward TaqMan probe primer 5° 3' 3': LulllW. 5' Template DNA that is being amplified During the primer extension step, the probe is digested by Taq polymerase, which separates the reporter from the quencher. Reporter is- not quenched Taq polymerase (b) Use of a TaqMan probe in real-time PCR FIGURE 21.8 An example of a probe, called TaqMan, used in a real-time PCR experiment.

Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter13: An Introduction To Genetic Technology
Section: Chapter Questions
Problem 15QP
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What needs to happen so the reporter molecule can emit fluorescence that is not quenched?

Reporter
Quencher-absorbs fluorescence
given off by reporter
when they are
close together
Oligonucleotide that is complementary
to one strand of the PCR product
(a) TaqMan probe
During the primer annealing step, both a primer and TaqMan
probe bind to the template DNA.
Forward
TaqMan probe
primer
5°
3'
3':
LulllW.
5'
Template DNA
that is being amplified
During the primer extension
step, the probe is digested
by Taq polymerase, which
separates the reporter from
the quencher.
Reporter is-
not quenched
Taq polymerase
(b) Use of a TaqMan probe in real-time PCR
FIGURE 21.8 An example of a probe, called TaqMan, used in
a real-time PCR experiment.
Transcribed Image Text:Reporter Quencher-absorbs fluorescence given off by reporter when they are close together Oligonucleotide that is complementary to one strand of the PCR product (a) TaqMan probe During the primer annealing step, both a primer and TaqMan probe bind to the template DNA. Forward TaqMan probe primer 5° 3' 3': LulllW. 5' Template DNA that is being amplified During the primer extension step, the probe is digested by Taq polymerase, which separates the reporter from the quencher. Reporter is- not quenched Taq polymerase (b) Use of a TaqMan probe in real-time PCR FIGURE 21.8 An example of a probe, called TaqMan, used in a real-time PCR experiment.
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