There are four children in the Smith family. One child has blue eyes and blond hair. The other three children have brown eyes and blond hair. How can you explain this difference in eye color?

Question

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1 point
Brown eyes are the inherited trait; blue eyes are a mutation.
Eye color is an inherited trait; brown eyes are dominant over blue.
The brown eyed children have spent a lot of time outdoors; it's an environmental change.
The blue eyed child is younger than the children with brown eyes; their eyes will become brown.

Answer 1

The best explanation for the difference in eye color among the Smith children is:

Eye color is an inherited trait; brown eyes are dominant over blue.

This means that in this family, the presence of brown eyes is likely due to dominant genetic traits, while the blue eye color is recessive and appears in one of the children.