Scientific evidence supports the view that posttranscriptional regulation of gene expression in eukaryotes occurs by a. differential capping. Posttranslational regulation of gene expression in eukaryotes involves a. proteolytic cleavage of proteins. All of these choices are true. Histones from different organisms show a large degree of genetic divergence. Eukaryotic chromosomes are linear and therefore are not supercoiled.
Histones are the only proteins known to be associated with chromatin.
Eukaryotic organisms have three different RNA polymerases. Sigma factors in eukaryotes show a large degree of homology with their prokaryotic counterparts. RNA polymerase III promoters are situated within the genes they control. The 72 base-pair repeat upstream sequence found in the SV40 tumor virus is actually a promoter. Eukaryotic genes show colinearity between genes and gene products.