Examlex
Genes mutate, ____________________ are selected, and populations____________________.
Fraternal Twins
Twins born from two different eggs fertilized by two different sperm, resulting in siblings that are genetically unique from each other.
Brother and Sister
A familial relationship describing male and female siblings who share one or both parents in common.
Heredity
The genetic transmission of characteristics from parent to offspring.
Personality
The mix of traits or attributes that creates a person's unique personality.
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