Copy of Among the four available choices, which one best describes the following statement: chemical modifications on the...

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Biology

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Among the four available choices, which one bestdescribes the following statement:
chemical modifications on the tails of histonesdetermine whether chromatin is open (decondensed) orclosed
A.
in eukaryotes (euks) only
B.
in neither proks nor euks
C.
in prokaryotes (proks) only
D.
in both proks and euks
When comparing replication and transcription, pick thebest answer that describes this property:
in eukaryotes, the new strands are modified by additionof a string of A nucleotides

A.
both
B.
transcription only
C.
neither
D.
replication only

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Q Histones are the positively charged proteins that are present only in eukaryotic cells DNA coils around these proteins for packaging Acetylation of histone proteins increases the gene expression See Answer

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	A.	in eukaryotes (euks) only
	B.	in neither proks nor euks
	C.	in prokaryotes (proks) only
	D.	in both proks and euks

	A.	both
	B.	transcription only
	C.	neither
	D.	replication only