Biosynthesis of all N-linked oligosaccharides begins in the rough ER with a preformed branched oligosaccharide precursor Glc3Man9(GlcNAc)2, Which of the following statements is incorrect about these biosynthesis?

a) the oligosaccharide precursor is assembled on a membrane- attached anchor called dolichol phosphate

b) First sugar residue is attached to dolichol by a glycosidic bonds & the other

sugars are added by high-energy pyrophosphate

c) Two N- acetylglucosamine (GlcNAc) and five mannose residues are added one at a time to a dolichol phosphate on the lumen

d) Four mannose and three glucose  residue are added one to a dolichol phosphate on the luminal side

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#Question id: 6966

#Unit 5. Developmental Biology

During gastrulation in the frog, the very first cells to move into the interior of the embryo through the blastopore come from the surface layer of cells in the marginal zone; they will become:

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#Question id: 19016

#Unit 13. Methods in Biology

In reverse phase chromatography, the stationary phase is made______________

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#Question id: 2265

#Unit 2. Cellular Organization

Passage through pores in the nuclear envelope is restricted primarily to

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#Question id: 18773

#Unit 13. Methods in Biology

The affinity constant, Ka between antigen-antibodies, can be determined by 

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#Question id: 10298

#Unit 6. System Physiology – Plant

Wernicke-Korsakoff syndrome is more common among people with alcoholism than in the general population, The syndrome can be exacerbated by a mutation in the gene for;