Question

DNA makes us all unique by controlling the production _____ of that make us look different and have the structures to better survive within our _____

Answer 1

I believe the first answer is protein instead of genes. Genes compose of DNA and histone. Histone is a protein that DNA cluster onto though I think you don’t need to know this in details in middle school.
What tipped me off is the word “production”. DNA does not produce genes because it is a part of it. Instead, DNA sequences is transcribed into mRNA, which is translated into amino acid polypeptide chain. It folds into proteins, which are the main substance composing our bodies.

Answer 2

genes and environment

Step-by-step explanation:

I believe this is what you are looking for. If genes is wrong then it may be a different version of the word such as phenotype/genotype