Question

1. how does the structure of dna determine the proteins that are made?
2. how do proteins determine the traits we see in an organism?
3. what might happen if a dna sequence changes (mutation)?

Explanation:

1. DNA's structure contains genetic code. Through transcription, DNA makes mRNA, which is then translated into proteins at ribosomes.
2. Proteins can act as enzymes, structural components, etc. They influence cell - function and development, thus determining traits.
3. A DNA sequence change (mutation) can alter the mRNA sequence. This may change the sequence of amino - acids in a protein, potentially altering its function.

Answer:

1. DNA's genetic code is transcribed to mRNA and then translated to proteins.
2. Proteins influence cell - function and development to determine traits.
3. A mutation can change the amino - acid sequence of a protein and its function.