Dioxin, produced as a by-product of various industrial chemical processes, is suspected of contributing to the development of cancer 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. nucleosomesb. dna polymerasesc. enhancersd. transcription factorse. growth factor receptors

Transcription factor

Explanation:

Transcription factors are the proteins present in the cytoplasm. The function of the transcription factors is to regulate the gene expression by binding to the regulatory sequence. The binding site for a transcription factor is mostly present upstream of initiation codon or maybe within the gene itself.

The transcription factor bound to the regulatory site interact with RNA polymerase to regulate the expression of the gene. According to the given information, dioxin binds to the cytoplasmic proteins and alter the gene expression. These cytoplasmic proteins must be transcription factors for the target gene of dioxin.

[content deleted] - user123802726recklesschicken

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure