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TLS Online TPP Program

#Question id: 1369

The following statements are made with reference to characteristics of glycosaminoglycans and proteoglycans, which are major constituents of extracellular matrix. Which one of them is incorrect?

#Unit 4. Cell Communication and Cell Signaling

  1. Glycosaminoglycans are long linear polymers of specific repeating disaccharides. Usually one sugar is either a uronic acid or d-galactose; the other sugar is N-acetylglucosamine or N-acetylgalactosamine.

  2. Proteoglycan core proteins are synthesized in the endoplasmic reticulum, and the GAG chains are assembled on and covalently attached to these cores in the Golgi complex.

  3. All GAG chains are elongated by the alternating addition of sugar monomers to form the disaccharide repeats characteristic of a particular GAG; the chains are often modified subsequently by the covalent linkage of small molecules such as sulfate.

  4. The ratio of polysaccharide to protein in all proteoglycans is much lower than that in most other glycoproteins.

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TLS Online TPP Program

#Question id: 13001

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is incorrect 
a) antiparallel β sheets are frequently found and they are quite more stable because of more no. hydrogen bond presence and linear H bonding pattern.
b) antiparallel β sheets are frequently found and they are quite more stable because of more no. hydrogen bond presence and having distorted H bonding pattern.
c) parallel β sheets are relatively less stable and mostly found in core of protein.
d) parallel β sheets are relatively more stable and mostly found in core of protein.
TLS Online TPP Program

#Question id: 28073

#Unit 6. System Physiology – Plant

Which of the following is correct regarding ATP & NADPH synthesis and its physiological environment 
(a) ATP & NADPH is synthesized in Stroma
(b) ATP & NADPH is synthesized in Lumen
(c) STROMA is alkaline and similar to Mitochondrial matrix
(d) STROMA is acidic and similar to Mitochondrial matrix
Which of the following is correct
TLS Online TPP Program

#Question id: 26929

#Unit 10. Ecological Principles

Which of the following statements define correct differences between ecological compression and ecological release?
a.long term evolutionary response and population explosion
b.More number of species coexist together and species is freed from limiting factors in its environment
c.Non inheritable trait and ecological release is the expansion of range
d.change habitat with reducing the food range and decreasing population
TLS Online TPP Program

#Question id: 31351

#Unit 1. Molecules and their Interaction Relevant to Biology

Find incorrect match of the pKa's of the ionizable groups with respective amino acids
TLS Online TPP Program

#Question id: 5249

#Unit 8. Inheritance Biology

What is the best explanation for why Bernard Davis didn't observe generalized transduction in his U tube experiments?