Histone deacetylases (HDACs) are a group of enzymes closely related to __________. They catalyze acetyl group removal from lysine residues in histones and non-histone proteins, causing transcriptional repression. HDACs are usually components of multiprotein complexes.

组蛋白密码(histone code)]

Which of the following is correct about the assembly of chromosome: A: nucleosome→core histone octamer→solenoid→microstrip→loop domain→chromatid B: core histone octamer→nucleosome→solenoid→loop domain→microstrip→chromatid C: core histone octamer→nucleosome→microstrip→solenoid→loop domain→chromatid D: core histone octamer→nucleosome→solenoid→microstrip→loop domain→chromatid

对于下面问句回答正确的是： A: Non,iln’aimeparlerpasfrançais. B: Non,iln’aimepasparlefrançais. C: Non,ilAimeneparlerpasfrançais. D: Non,iln’aimepasparlerfrançais.

—Ya-t-ildeschaises?—Non,____________.

根据Disruptive theory,创新有()。 A: Disruptive B: non Disruptive C: Disruptive和non Disruptive都不对 D: Disruptive和non Disruptive都选

Non participatory and interactive speaking and

The allergic reaction produced by the drug depends on A: Pharmacodynamic properties B: Pharmacokinetic properties C: Both A and B D: Non A non B

Etes-vous Japonais? Non, je suis ____.

(1分)Etes-vousFrançais?Non,nousne____sommespas.