PCR, gel electrophoresis, cloning, CRISPR, sequencing, blotting, recombinant DNA and model organism tools.
About this set
39 basic cards for College Biology. Set 2 of 2 in Molecular Biology. It opens with "What does PCR stand for?" and "What are the three main steps of each PCR cycle, in order?". Study it alongside the other College sets below.
39 cards · basic cards · AI-written, checked twice. Edit anything.
- What does PCR stand for?
Show answer
Polymerase Chain Reaction
- What are the three main steps of each PCR cycle, in order?
Show answer
Denaturation, annealing, extension
- What is the typical denaturation temperature in PCR?
Show answer
94-95 degrees Celsius
- What is the typical annealing temperature in PCR?
Show answer
50-65 degrees Celsius
- What is the typical extension temperature in PCR?
Show answer
72 degrees Celsius
- What DNA polymerase is typically used in PCR?
Show answer
Taq polymerase
- What is the function of primers in PCR?
Show answer
To bind to the template DNA and provide a starting point for DNA synthesis
- Approximately how many copies of DNA result from 30 cycles of PCR?
Show answer
About 1 billion copies (2 to the 30th power)
- What is gel electrophoresis?
Show answer
A laboratory technique that separates DNA or proteins based on size and charge using an electric field
- Why does DNA migrate through a gel when an electric field is applied?
Show answer
DNA has a negatively charged phosphate backbone, so it moves toward the positive electrode
- In gel electrophoresis, what determines how far DNA fragments travel?
Show answer
Their size; smaller fragments move farther than larger fragments
- What is agarose used for in gel electrophoresis?
Show answer
As the gel matrix to provide pores through which DNA fragments migrate
- How does ethidium bromide allow visualization of DNA?
Show answer
It intercalates between DNA base pairs and fluoresces when exposed to UV light
- What is molecular cloning?
Show answer
The process of creating copies of a specific DNA sequence and inserting it into a vector or host cell
- What is a restriction enzyme?
Show answer
A protein that cuts DNA at specific recognition sequences