Kai looks at a photo of herself with her parents. She notices that, while her features are similar to her parents’ features, they do not appear to be identical. Which explains why this is the case?

Kai resembles her parents because she inherited DNA from both of them, but she does not inherit identical DNA. Different sequences of DNA bases can produce different codon sequences, which can lead to differences in proteins and features. The bases themselves are the same four types in humans, so C does not explain why their features differ.

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