Respuesta :
Answer:
for the usa test prep answer the answer is B)
Explanation:
During development, individual cells of the same organism begin to produce
different proteins because specific genes are activated in the cells.
Specific genes in cells for development are usually influenced by signals in
the environment or other cells in the organism.
This happens when proteins bind to two key bits of DNA, an enhancer and a
promoter to ensure that there is proper metabolic processes in the growth
and development in the cells of the organisms.
Read more about Gene activation on https://brainly.com/question/25681154