Two homologous chromosomes cross over (labeled with an arrow) and swap genetic information.

Image source: By Boumphreyfr CC BY 2.0, via Wikimedia Commons

The picture above shows the event called crossing over. What is the arrow pointing to?

Choose one answer

Type a concept, like “slope” or “photosynthesis”.

↑ ↓ to choose · Enter to openSearch explanations and problems