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:

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c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."