TLS Online TPP Program

#Question id: 19012


Which of the following is the disadvantage of nitrogen, which can be used as carrier gas in gas chromatography?

#Unit 13. Methods in Biology
  1. Dangerous to use
  2. Expensive
  3. Reduced sensitivity
  4. High density
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TLS Online TPP Program

#Question id: 31235

#Unit 2. Cellular Organization

Most of the cohesins along the chromosome arms are removed from chromosomes during prophase, mediated by phosphorylation of cohesins by:

TLS Online TPP Program

#Question id: 12893

#General Aptitude

A brick 2" thick is placed againsta wheel to act for a stop. The horizontal distance of the face of the brick from the point where the wheel touches the ground is 6". The radius of the wheel in inches is

TLS Online TPP Program

#Question id: 2990

#Unit 2. Cellular Organization

Mitotic CDK complexes are maintained in an inactive state through inhibitory phosphorylation of the CDK subunit. Two highly conserved tyrosine and threonine residues in mammalian CDKs are subject to regulated phosphorylation.

Gene

  Mutant phenotypes

A. Wee1

i. the cell does not divide but continues to grow

B. CAK kinase

ii. mitotic cyclins are inactivated

C. cdc25 phosphatase

iii. premature entry into mitosis

The following table enlists genes and phenotypes observed on mutation of these genes but not correctly matched. Which one of the following combinations is correctly matched ?

TLS Online TPP Program

#Question id: 9272

#Unit 6. System Physiology – Plant

The quantum yield of photosynthesis falls off drastically for far-red light of wavelengths greater than 680 nm, indicating that far-red light alone is inefficient in driving
photosynthesis, this effect is called

TLS Online TPP Program

#Question id: 460

#Unit 1. Molecules and their Interaction Relevant to Biology

The hydrolysis of ATP to ADP has a △G°ʹ of -30 kJ/mol. If in an E. coli cell the concentrations of ATP, ADP and inorganic phosphate are 7.90 mM, 1.04 mM and 7.9 mM, respectively, which statement is true about the hydrolysis of ATP in the cell? (Assume a temperature of 298 K. R = 8.315 J/K-mol)