I hold the keys to traits and fate, my pieces fit together, but I can also mutate. What am I?

Category: Science · Difficulty: expert

Hint: Look into the building blocks of heredity.

Answer

Genes

Explanation

Genes are segments of DNA that determine inherited traits, and mutations can alter their function and expression.

This is a expert science riddle — one of the harder riddles here. The answer is Genes.

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