In prokaryotes, control of gene expression usually occurs at the:. a. splicing of pre-mRNA into mature mRNA.
b. initiation of translation.
c. initiation of transcription.
d. all of the choices are correct.

Which of the following are not matched correctly? cd8+: directly destroy infected or cancerous cells t reg cell: reduce the adaptive response once threat passes t l: activate cellular branch (cytotoxic t cells, macrophages, nk cells) t 2: stimulate b cells to make antibodies t (cd4+): mhc i