Dioxin, produced as a by-product of various industrial chemical processes, is suspected of contributing to the development of ca
ncer and birth defects in animals and humans. it apparently acts by entering cells by simple diffusion and binding to proteins in the cytoplasm, then altering the pattern of gene expression. which of the following are likely to be the cytoplasmic proteins to which dioxin binds? a. nucleosomes b. dna polymerases
c. enhancersd. transcription factors
e. growth factor receptors
Why can a signaling molecule cause different responses in different cells? Different cells have membrane receptors that bind to different sides of the signaling molecule. The transduction process is unique to each cell type; to respond to a signal, different cells require only a similar membrane receptor
