IntermediateLab Techniques
#26PCR Explained Simply
The core logic of polymerase chain reaction, from primers to exponential amplification.
Starts the Lab Techniques series
10 min read4 termsCovers 4 glossary terms
Read lessonLab Techniques2 lessons
Lab Techniques
PCR, gel electrophoresis, sequencing, and the methods that power modern biology.
Use this hub as a guided doorway into the topic: start with the first lesson, build the vocabulary, then branch into related explainers.
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Learn the methods that make molecules visible
This hub focuses on the practical techniques students meet early in molecular biology labs.
- Step 110 min readPCR Explained Simply
- Step 28 min readGel Electrophoresis Explained
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IntermediateLab Techniques
#27Gel Electrophoresis Explained
How an electric field separates DNA fragments by size inside a porous gel.
Part 2 of 2 in Lab Techniques ยท Builds on: PCR Explained Simply
8 min read4 termsCovers 4 glossary terms
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Terms that anchor this topic
These definitions help keep the vocabulary attached to the ideas instead of floating on their own.
Agarose
Lab TechniquesA jelly-like polysaccharide used to make gels that separate DNA fragments by size.
Base pair
DNATwo nucleotides on opposite DNA strands held together by hydrogen bonds (A-T, G-C).
DNA
DNADeoxyribonucleic acid: the double-stranded molecule that stores genetic information.
Double helix
DNAThe twisted ladder-like shape formed by the two strands of a DNA molecule.
Nucleotide
DNAA building block of DNA or RNA made of a sugar, a phosphate, and a nitrogenous base.
PCR
Lab TechniquesPolymerase chain reaction: a method to copy a specific DNA segment millions of times.
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