Which of the following could have an effect on the on the expression of a gene? A. The concentration of the end product of a metabolic pathway within a cell
B. The rate at which ribosomes attach to mRNA to begin translation
C. The number of mRNA transcripts that are produced
D. All of these

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

this protocol describes a detailed procedure for intracellular flow cytometry staining.