TLS Online TPP Program

#Question id: 10222


Energy partitioning between two photosystem protects them from quick dessipation or quick inactivation this energy partitioning take place by a protein kinase that can phosphorylate a specific threonine residue on the surface of LHCII, what is the role of LHCII in phosphorylated and non-phosphorylated state?

a.) LHCII in phosphorylated state migrate towards the PSI in the unstacked region and delivers energy to the PSI 

b.) LHCII in nonphosphorylated state moves back to the grana and delivers energy to the PSII

c.) LHCII in phosphorylated state migrate towards the PSII in the stacked region and delivers energy to the PSI 

d.)  LHCII in nonphosphorylated state moves towards the stroma lamellae unstacked region and delivers energy to the PSII 

Which of the following combination is CORRECT?

#Unit 6. System Physiology – Plant
  1. A and D              
  2. A and B
  3. B and C                 
  4. ONLY A
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TLS Online TPP Program

#Question id: 5119

#Unit 5. Developmental Biology

when the presumptive eye region from a gastrula is grafted into the trunk region of another neurula, it develops to somitic tissue; whereas transplant from eye region of later stage neurula develops as an eye-like structure in host embryo. Which statement describes the results best?

 

TLS Online TPP Program

#Question id: 5120

#Unit 5. Developmental Biology

Which one of the following statements are regarding to epiboly is correct?

TLS Online TPP Program

#Question id: 5121

#Unit 5. Developmental Biology

Following statements are being made regarding ‘stem cells. Which statement is incorrect?

TLS Online TPP Program

#Question id: 5122

#Unit 5. Developmental Biology

In amphibia, when epidermal (ectodermal) and mesodermal cells are brought together in a mixed aggregate, the epidermal cells move to the periphery of the aggregate, and the mesodermal cells move to the inside by the process of selective affinity. Which of the following statement describe the phenomena of selective affinity?

TLS Online TPP Program

#Question id: 5123

#Unit 5. Developmental Biology

The generation of specialized cell typces is called ‘differentiation’, a process during which-

TLS Online TPP Program

#Question id: 5124

#Unit 5. Developmental Biology

Following statements are being made regarding conditional specification –

A. The process by which cells achieve their respective fates by interacting with other cells.

B. the cell “knows” very early what it is to become without interacting with other cells.

C. The critical factors that control cell fate are present and differentially segregated in the cytoplasm of these cells.

D. a cell becomes is specified by the array of interactions it has with its neighbors, which may include cell-to-cell contacts (juxtacrine factors), secreted signals (paracrine factors).

Which of the above statements are correct?