Final answer:
The estrogen-receptor complex binds to coactivator proteins, causing nearby genes of DNA to become activated and transcribed.
Step-by-step explanation:
The estrogen-receptor complex binds to coactivator proteins, and this binding causes nearby genes of DNA to become activated and transcribed. This means that the genes are turned on, resulting in the production of messenger RNA (mRNA) molecules, which will eventually lead to the synthesis of proteins encoded by those genes.