Inactive PKA is a tetramer consisting of- 

two regulatory (R) subunits

two catalytic (C) subunits

TLS Online TPP Program

#Id: 10486

#Unit 4. Cell Communication and Cell Signaling

MDM2 levels in the cytoplasm are controlled by

ATR and p14ARF (p19ARF in the mouse), sequesters it in the nucleolus, where it cannot access p53.

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#Id: 634

#Unit 3. Fundamental Processes

HNO₂ or Nitrous Acid is deaminating agent causes removal of –NH2 for nitrogenous bases. 

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#Id: 5369

#Unit 10. Ecological Principles

Quadrats - A square frame often, but not always, measuring 50 × 50 cm. 

TLS Online TPP Program

#Id: 5544

#Unit 7. System Physiology – Animal

The thick ascending limb has a sodium-hydrogen counter-transport

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#Id: 1972

#Unit 10. Ecological Principles

Life expectancy - The average number of additional age classes an individual can expect to live at each age.