Psychology / Unit 2 Psych 0252 short lesson, about 20 seconds
Genes and Chromosomes
Captions available
The idea
A gene is a segment of DNA coding for a protein; chromosomes are the structures on which genes are carried.
In practice
Human cells carry 23 pairs of chromosomes, one member of each pair inherited from each parent.
Where people slip
Genes code for proteins, not for behaviors. Every path from gene to behavior runs through many steps.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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