Which of the following is true?   a.     Enhancers are proteins that bind to activator DNA sequences.           b. Activators are proteins that bind to insulator sequences     c. Repressors are proteins that bind to enhancer DNA sequences.   d. Repressors are proteins which bind to silencer DNA sequencers.

Match whether the protein binds directly or indirectly (assuming it does) to DNA and whether to the enhancer or promoter. Items may be matched to multiple choices and not all choices will be used. 1. Directly to enhancer Repressors 2. Directly to promoter Activators 3. Indirectly to enhancer TBP associated factors 4. Indirectly to promoter >

Which of the following is NOT true of DNA Methylation.     A.   DNA methylation is typically correlated to gene repression.       B.   On a given gene, histone modifications or DNA methylation could be used, but not both at the same gene.       C.  DNA methylation can be used in mismatch repair to identify the parent strand after DNA replication.       D.  DNA methylation typically occurs on dCTP nucleotides in eukaryotes.       E.  DNA methylation can be inherited through mitosis.

Enhancers:   a. are always located upstream of the TATA sequence   b. are always within 200 bp of the TATA sequence   c. are responsible for time and tissue specific transcription     d. All the above are true.