TLS Online TPP Program

#Question id: 612


 The quaternary structure of hemoglobin changes from the T state to the R state ________.

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. when at least one subunit on each dimeric unit (αβ dimer) is oxygenated

  2. only after four molecules of O2 are bound

  3. after the binding of one molecule of O2 causes a change in the primary structure

  4. when hemoglobin is completely deoxygenated

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TLS Online TPP Program

#Question id: 28236

#Unit 5. Developmental Biology

 One of the mechanism of stem cell regulation is Extracellular mechanisms which involve physical as well as chemical regulation. which of the following prediction is incorrect about the Physical mechanisms ?

TLS Online TPP Program

#Question id: 28237

#Unit 5. Developmental Biology

One of the regulation of extracellular mechanism is chemical regulation of stem cells takes the form of secreted proteins from surrounding cells that influence stem cell through signals, these Chemical signals maintain the stem cell in which state?

TLS Online TPP Program

#Question id: 28238

#Unit 5. Developmental Biology

 At what state stem cell exist, when stem cells become positioned farther from the niche? 

TLS Online TPP Program

#Question id: 28239

#Unit 5. Developmental Biology

 In principles of stem cell regulation involve Extracellular mechanisms leading to intracellular changes, for these changes various intracellular regulatory mechanisms include, except? 

TLS Online TPP Program

#Question id: 28240

#Unit 5. Developmental Biology

partitioning occurs at cytokinesis, factors determining cell fate are either selectively partitioned to one daughter cell or shared evenly between daughter cells, so these type of regulation called___

TLS Online TPP Program

#Question id: 28241

#Unit 5. Developmental Biology

regulation occurs through a factors that keep a stem cell in its quiescent or proliferative state, as well as promoting maturation of daughter cells toward a particular fate, these type of regulation is called as___