In eukaryotes, what allows only certain genes to be expressed in different types of cells?

MyoD promotes muscle cell development by __________.

Which of these statements about enhancers is correct?a. They contain a unique base sequence called a TATA box.b. They are located only in 5′ untranslated regions.c. They are located only in introns.d. They are found both upstream and downstream from the transcription start site and are functional in any orientation.

Which of these statements about enhancers is correct?a. They contain a unique base sequence called a TATA box.b. They are located only in 5′ untranslated regions.c. They are located only in introns.d. They are found both upstream and downstream from the transcription start site and are functional in any orientation.

The functioning of enhancers is an example ofa. a eukaryotic equivalent of prokaryotic promoter functioning.b. transcriptional control of gene expression.c. the stimulation of translation by initiation factors.d. post-translational control that activates certain proteins.

In eukaryotes, what allows only certain genes to be expressed in different types of cells?

Compare and contrast the items in each pair: (c) general transcription factors and sigma.

Compare and contrast the items in each pair: (a) enhancers and the E. coli CAP binding site

Compare and contrast the items in each pair: (b) promoter-proximal elements and the operator of the lac operon