TLS Online TPP Program

#Question id: 10303


During glycolysis, if radiolabelled the glucose at 3 or 4 carbon then what will be the correct prediction about radiolabelling in the cycle?

#Unit 6. System Physiology – Plant
  1. Glucose radiolabelling carbon do not enter into the TCA cycle

  2. Pyruvate 1 carbon will not be radiolabelled
  3. pyruvate 1 carbon will be radiolabelled and enter into the TCA cycle
  4. in citric acid cycle, only carboxylic group of citrate will be radiolabelled
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TLS Online TPP Program

#Question id: 10589

#Unit 10. Ecological Principles

We have seasonal breeding population of 1,000 organisms increasing at a finite rate of 15% per year. The population size will be after 4 year?

TLS Online TPP Program

#Question id: 1256

#Unit 4. Cell Communication and Cell Signaling

Scaffolds for MAP kinase pathways are well documented in yeast, fly, and worm cells, but their presence in mammalian cells has been difficult to demonstrate. Perhaps the best documented scaffold protein in metazoans is Ksr (kinase suppressor of Ras).

A. Ksr functions as a molecular scaffold by binding several signaling components of the MAP kinase cascade, including both MEK and MAP kinase; and thus can enhance MAP kinase activation by regulating the efficiency of these interactions.

B. Ksr function as a protein kinase which constitutive activate RTK signalling pathway.

C. Ksr function as a receptor proteins which inhibits RTK signalling pathway.

D. Ksr function as a protein phosphatase which inhibits RTK signalling pathway.

Which of the following statement is correct about Ksr?

TLS Online TPP Program

#Question id: 11576

#Unit 7. System Physiology – Animal

The amino acid tyrosine is a starting substrate for the synthesis of :

TLS Online TPP Program

#Question id: 13185

#Unit 10. Ecological Principles

If a drop in sea level led Island 1 to double in area, the MacArthur-Wilson model predicts that the number of bird species found there would

TLS Online TPP Program

#Question id: 23148

#Unit 13. Methods in Biology

There are two proteins A and B to be visualized under fluorescence microscopy. Both of them are excited with same wavelength of light but A emits longer wavelength. Hence we can conclude that 
1. A is denser molecule than B
2. B is denser molecule than A
3. A is lighter molecule than B
4. B is lighter molecule than A
Which of the following option is incorrect?