Question: 1. A transcription factor that recruits histone
acetyltransferase (HAT) will have what general ef…
1. A transcription factor that recruits histone
acetyltransferase (HAT) will have what general effect on genes?
| A) | Transform 10 nm chromatin fibers into 30 nm chromatin fibers. |
| B) | Remove positive charges from histones. |
| C) | Convert euchromatin to heterochromatin. |
| D) | Repress transcription. |
| E) | Recruit chromodomain proteins. |
2. Which of the following is not true
of bacterial helix-turn-helix proteins?
| A) | Can alter gene expression by chemical modification of histones. |
| B) | Consensus nucleotide sequence is an inverted repeat (palindrome). |
| C) | Bind to DNA with two identical subunits. |
| D) | Sequence-specific DNA binding. |
| E) | Recognition helix forms non-covalent bonds within the major groove. |
3. Which of the following is not true
of the yeast transcription factor GAL-4?
| A) | Displaces nucleosomes so that the RSC complex can bind DNA. |
| B) | Binds to DNA as a homodimer. |
| C) | Normally activates transcription of the GAL1 gene. |
| D) | Binds to a DNA sequence known as UAS. |
| E) | Has physically separate DNA-binding and activation domains. |
(Visited 8 times, 1 visits today)
