Which of the following facilitates nucleosome positioning?

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#Question id: 2868

#Unit 2. Cellular Organization

Given the following mutants and conditions, predict the expression of the of the lacZ gene (no expression, basal level of expression, or activated level of expression). A mutant of E. coli that has a mutation in the operator of the lac operon that prevents the repressor from binding

Glucose	Lactose	Expression
+	-	1
+	+	2
-	-	3
-	+	4

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#Question id: 158

#Unit 1. Molecules and their Interaction Relevant to Biology

At the isoelectric pH of a tetrapeptide:

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#Question id: 26983

#Unit 10. Ecological Principles

Plant life histories based on a model in which stress, disturbance, and competition are the important selective factors.

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#Question id: 12942

#Unit 13. Methods in Biology

Name a single - stranded uracil containing vector which is grown in a selectable host deficit of the enzymes.

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#Question id: 24288

#Unit 4. Cell Communication and Cell Signaling

Select the CORRECT combination by matching the junctions with their functions.