To analyze existing MARs that are bound to the matrix in vivo, what is correct order of method 

A. Chromosomal loops decondensed by extracting the chromatin proteins. 

B. Removal of the DNA loops by treatment with restriction nucleases

C. Amplification of MAR and sequencing

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#Question id: 7236

#Unit 5. Developmental Biology

Which of the following statement justified that the PMZ in chick is functionally equivalent to the amphibian Nieuwkoop center?

A. The posterior marginal zone produces Wnt8c and that, the PMZ cells secrete Vg1, a member of the TGF-β family.

B. PMZ cells capable of inducing the accumulation of β-catenin

C. PMZ cells secretes BMP, a member of the TGF-β family.

D. PMZ secretes its own Nodal antagonist—the Lefty protein.

Which of the following combination is correct?

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#Question id: 10381

#Unit 6. System Physiology – Plant

symbiosis receptor-like kinase (SYMRK) is another type of receptor involves several function. Which of the following is incorrect?

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#Question id: 9184

#Unit 9. Diversity of Life Forms

Which aquatic biome listed here is one of the most productive on Earth, and why?

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#Question id: 1943

#Unit 4. Cell Communication and Cell Signaling

What is HLA-DR2 a risk factor for?

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#Question id: 29452

#Unit 6. System Physiology – Plant

Auxins in biological samples can be determined by

a. bioassay

b. mass spectrometry

c. enzyme-linked immunosorbent assay 

d. The Avena coleoptile curvature assay