PCR (Polymerase Chain Reaction)
Interactive Video
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Biology
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11th Grade - University
•
Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What technology is introduced as being similar to a copy machine but for DNA?
Polymerase Chain Reaction (PCR)
CRISPR
Gel electrophoresis
DNA sequencing
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which enzyme is crucial for the PCR process due to its heat resistance?
DNA ligase
Reverse transcriptase
RNA polymerase
Taq polymerase
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the annealing step in PCR?
To cool down the reaction
To separate DNA strands
To bind primers to DNA
To synthesize new DNA strands
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the PCR process increase the number of DNA molecules?
By using a single cycle of denaturation
By repeating cycles of denaturation, annealing, and synthesis
By using multiple enzymes simultaneously
By increasing the temperature continuously
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is PCR considered useful in crime scene investigations?
It can amplify DNA samples for analysis
It can alter DNA sequences
It can identify the exact sequence of DNA
It can directly compare DNA samples
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key difference in the PCR test for COVID-19 compared to standard PCR?
It uses DNA as the starting material
It requires a higher temperature
It involves reverse transcription of RNA to DNA
It does not use primers
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of fluorescent probes in the PCR test for viruses?
To separate DNA strands
To bind to RNA
To identify positive results
To increase reaction speed
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