Histone deacetylase is responsible for removing the acetyl group from the histone 3 lysine 9 residue. Remember that deacetylation is one step in converting euchromatin to heterochromatin. Because euchromatin is transcriptionally active (transcriptional machinery is able to reach gene of interest), and blocking histone deacetylase activity would result in an the DNA remaining as euchromatin, we would expect to see an increase in transcriptional activity.
So there’s your answer: An increase in transcriptional activity.
An unidentified prokaryotic cell. Thus, option "4" is correct.
<h3>What atr prokaryotes and eukaryotes?</h3>
Prokaryotes are the unicellular organisms that do not contain nucleus and membrane bound organelle in their cell. Their genetic material is present in the cytoplasm.
On the other hand, eukaryotes have true nucleus that contains the genetic material (DNA). They also contain membrane bound specialised organelles (such as mitochondria, endoplasmic reticulum, golgi complex).
Thus, option "4" is correct.
To learn more about Prokaryotes click here:
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<span>Any physical or psychological event that produces stress</span>
Answer:
Brain.
Explanation:
When you become too cold, your hypothalamus will signal your brain to raise the temperature.
