Regulation

Gene methylation leads to the activation of a gene

• True

• False

• Depends

The enhancer binds to the activator, stimulating transcription

• True

• False

Which amino acids can undergo phosphorylation?

• serine

• threonine

• tyrosine

• thymidine

Acetylation _____________ access to the DNA, while methylation of lysine 9 & 27______________ access to the DNA.

• allows, blocks

• blocks, allows

• does not change, inactivates

• inactivates, does not change

Genomic imprinting is a result of

• DNA methylation

• histone methylation

• acetylation

• phosphorylation

The histones are covering the promoter, what regulation would be effective?

• methylation

• acetylation

• chemical modification

• nucleosome remodeling

• phosphorylation

NELF & DSIF function for

• negative regulation of elongation

• negative regulation of initiation

• positive regulation of elongation

• positive regulation of initiation

Chromatin rearrangement modifies the histone DNA sequence

• true

• false

The first order of chromatin structure

• looped form

• solenoid form

• beads on a string

• chromosome

Histone Acetyl Transferases (HATs) add acetyl groups to the histone tails, resulting in

• decondensed chromatin

• condensed chromatin

• none of these options