The packing of chromatin can be regulated by either the acetylation or deacetylation of DNA. A. True

B. False

B. False

Explanation:

The attraction between DNA and histones occurs because the histones are positively charged and the DNA is negatively charged.

B is your answer

Explanation:

where is the diagram?

if you insert the diagram ill be able to you

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms