In a bacterium, most expression regulation occurs because of the strength of a gene’s promoter.  What does this refer to?  Make sure you describe how two constitutively expressed genes can

Determine whether the following will increase or decrease gene expression: mRNA degradation mRNA capping Binding of a transcriptional activator Ubiquitination of a protein and targeting to the proteasome

Refer to the following illustration to answer the question. O protein A is not made because it is normally required for its own transcription TRANSIENT SIGNAL TURNS ON EXPRESSION OF PROTEIN A What is protein A? O a maintenance methyltransferase O a histone PAY O a cell type-specific gene regulator a HAT (histone acetyltransferase) any of the above PAD the effect of the transient signal is remembered in all of the cell's descendants

Which of the following is NOT true about cis-regulatory elements (CREs)? Group of answer choices Enhancers, silencers and promotors can be located anywhere in relation to the gene Enhancers are involved with increasing gene expression CREs often contain motifs that allow transcription factors to bind CREs are involved in determining the timing, location and amount of gene expression

Choose ONE example of control of gene expression in eukaryotes and describe it in detail. Identify which of the five levels of regulation of gene expression your example represents and explain how your example benefits the cell in which it takes place.

Let's say there is an eukaryotic gene that has five exons and 4 introns. If the GU sequence at the 5' splice site of the third intron is deleted, describe how this is going to affect the expression of this gene. draw the mature mRNA too.

Alternative splicing happens in both pro- and eukaryotes. True O False The yeast Gal80 protein inhibits transcription, but by binding to a transcriptional activator protein instead of to an operator. True O False