Chapter 15 (post)

CpG islands are associated with which of the following? -Nucleosome location -DNA methylation -Steroid hormone activity -cAMP pathway

-DNA methylation

Genomic imprinting is a result of ___________. -nucleosome location -histone activation -DNA methylation -serine to leucine changes in the genetic code

-DNA methylation

Select all structural motifs that promote protein dimerization. -Leucine zipper -Helix-loop-helix -Helix-turn-helix -Zinc finger

-Leucine zipper -Helix-loop-helix

What general transcription factor is most often affected by regulatory transcription factors? -TFIIB -TFIID -TFIIE -TFIIF

-TFIID

Which of the following is true with regards to enhancer sequences? -They are orientation-dependent. -Repressor proteins bind to them. -They may be located either upstream or downstream of the promoter. -They cannot be downstream of the start of transcription.

-They may be located either upstream or downstream of the promoter.