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TLS Online TPP Program

#Question id: 13125

Which of the following statements is consistent with the principle of competitive exclusion? 

#Unit 10. Ecological Principles
  1. Bird species generally do not compete for nesting sites.
  2. The density of one competing species will have a positive impact on the population growth of the other competing species.
  3. Two species with the same fundamental niche will exclude other competing species.
  4. Even a slight reproductive advantage will eventually lead to the elimination of the less well adapted of two competing species
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TLS Online TPP Program

#Question id: 28700

#Unit 2. Cellular Organization

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
TLS Online TPP Program

#Question id: 28701

#Unit 2. Cellular Organization

Which of the following inhibitors inhibits the synthesis of all N-linked oligosaccharides in cells?
TLS Online TPP Program

#Question id: 28702

#Unit 2. Cellular Organization

Oligosaccharyl transferase enzyme involves to transferred precursor oligosaccharide 
TLS Online TPP Program

#Question id: 28703

#Unit 2. Cellular Organization

Oligosaccharyl transferase enzyme involves to transferred precursor oligosaccharide from a dolichol lipid anchor to the tripeptide sequences, which of the following tripeptide sequences are substrates for oligosaccharyl transferase ?
TLS Online TPP Program

#Question id: 28704

#Unit 2. Cellular Organization

What is the function of Glycosidase in biosynthesis of all N-linked oligosaccharides in the ER?
TLS Online TPP Program

#Question id: 28705

#Unit 2. Cellular Organization

Which of the following protein is activating during unfolded protein response, which then move into the nucleus and production of proteins that assist in protein folding?