Topic explanation

Standard explanation

PCR repeatedly separates DNA strands, anneals primers and extends new strands with heat-stable polymerase, producing many copies of a selected region.

Key points

• polymerase chain reaction
• cause → mechanism → outcome
• polymerase, chain, reaction
• definition · mechanism · significance
• Polymerase chain reaction: PCR repeatedly separates DNA strands, anneals primers and extends new strands with heat-stable polym
• Mechanism: Start with the trigger or starting condition, follow the biological structures and signals in order,
• Biological significance: Understanding polymerase chain reaction connects structure, mechanism and biological outcome. It hel
• WHAT — POLYMERASE CHAIN REACTION: PCR repeatedly separates DNA strands, anneals primers and extends new strands with heat-stable polym

Labelled diagram