Question

mutations cause changes in _. a) elements b) proteins c) compounds d) essential nutrients

Explanation:

Mutations are changes in the DNA sequence. DNA codes for proteins, and mutations can alter the sequence of amino - acids in a protein, thus causing changes in proteins. Elements are basic substances and not directly affected by mutations in the context of genetic changes. Compounds are made up of elements and are also not the direct target of change due to mutations. Essential nutrients are substances required for normal physiological function and are not what mutations directly cause changes in.

Answer:

B) proteins