Comment by Boertie on 25/11/2024 at 13:51 UTC

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View submission: How do genes get passed down?

The gametes of that father and mother are each unique, but only contain half the genetic information of a regular human.

These chromosomes combine during fertilization, and crossing over (combination) occurs.

This combination is slightly different each time because of the mechanism in how it works.

This means that the same egg and sperm cell don't create the identical person each time.

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