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Biology / Unit 13   Bio 3361 short lesson, about 20 seconds

"Identical Twins Are 100% Genetically Identical"

Captions available

The idea

Stating identical twins share 100% identical genomes throughout life overstates a starting condition — twins begin identical but mutate independently afterward.

In practice

Identical twins studied later in life show small DNA differences traceable to mutations after the split.

Where people slip

This entry states the assumption — Bio 3363 gives the process it overlooks.

Your place on the trail

Every lesson rests on earlier ones and opens later ones. Tap any to jump.

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