What evidence suggests that RNAi plays a role in heterochromatization?
a) Addition of RNAi components impair both methylation of histone H3K9 and heterochromatization.
b) None of the choices is correct.
c) Deletion of RNAi components impair both methylation of histone H3K9 and heterochromatization.
d) Mutation of RNAi components denatures both methylation of histone H3K9 and heterochromatization.
e) Deletion of RNAi components enhances both methylation of histone H3K9 and heterochromatization.
Ans: c) Deletion of RNAi components impair both methylation of histone H3K9 and heterochromatization.
You might also like to view...
Humans can digest starch but not cellulose because _____
A) humans have enzymes that can hydrolyze the ?-glycosidic linkages of starch but not the ?-glycosidic linkages of cellulose B) humans have enzymes that can hydrolyze the ?-glycosidic linkages of starch but not the ?-glycosidic linkages of cellulose C) starch monomers are joined by covalent bonds and cellulose monomers are joined by ionic bonds D) the monomer of starch is glucose, while the monomer of cellulose is galactose E) the monomer of starch is fructose, while the monomer of cellulose is glucose
A single unit of hereditary that contains the information for an individual protein is referred to as a ____
Some hep with this, please?
Target tissues for steroid hormones and thyroid hormones do not have membrane receptors for these
hormones because they
a. stimulate the cell by changes in electrical activity. b. are water soluble. c. enter the cell by ion channels. d. are small enough to diffuse directly into the cell. e. are soluble in the lipid bilayer.
The ability of the adaptive immune response to tailor its response to a particular antigen is referred to as ____
a. diversity b. memory c. specificity d. inflammation e. self-recognition