Epigenetics marks refer to modifications to DNA and proteins that in turn regulate gene expression. Which statement is true regarding these specific types of modifications?

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#Question id: 12649

#Unit 6. System Physiology – Plant

lipoxygenases biosynthetic enzymes of jasmonic acid function takes place in____

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#Question id: 16774

#Unit 13. Methods in Biology

 Some of the samples are given below. Find the median. 90, 45, 67, 34, 26, 76, 44, 55.

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#Question id: 4152

#Unit 3. Fundamental Processes

The pathway for polypeptides exported from E. coli includes the following steps, which occur in what order for correct export?

1.  A chaperone, SecA, binds to the polypeptide.

2.  A chaperone, SecB, binds to the polypeptide.

3.  ATP is hydrolyzed by Sec A.

4.  SecA pushes 20 amino acids of the polypeptide into the translocation complex.

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#Question id: 19083

#Unit 6. System Physiology – Plant

Alternaria produces a toxin, which activates a plant cell death program in tomato (Solanum lycopersicum) leaves___

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#Question id: 23795

#Unit 7. System Physiology – Animal

Correctly match the responses with given cells according their functions;

Cells	Responses
1.Rods, cones and horizontal cells	p. hyperpolarizing potential
2.Bipolar cells	q. depolarizing potential
3.Amacrine cells	r. Either hyperpolarizing or depolarizing potential