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#Question id: 5639

In a comparison of plant and animal development, it is found that:

#Unit 5. Developmental Biology

  1. Animals evolved from plants, and animal developmental strategies are derived from those of plants

  2. Fully differentiated cells of plants are still totipotent, and will readily form a complete fertile plant whereas the differentiated state of animal cells is difficult to reverse

  3. Gene regulation evolved later than the split between plants and animals, and is executed differently in the two kingdoms

  4. Basic metabolic pathways and intracellular structures evolved separately in plants and animals and are fundamentally different

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TLS Online TPP Program

#Question id: 23151

#Unit 13. Methods in Biology

If the concentration of Ca2+ is high inside the cell and fura-2 dye is used to map the concentration which of the following conditions will prevail?
1. Fluorescence will decrease
2.  Fluorescence will increase
3. Emission of light at higher wavelength
4. Emission of light at lower wavelength
Which of the following options are correct?
TLS Online TPP Program

#Question id: 23152

#Unit 13. Methods in Biology

A fluorescent dye SNARF-1 that is sensitive to H+ concentrations can be used to monitor the cytosolic pH of 
1. Alkaline cells
2. Acidic cells 
3. Dead cells
4. Live cells
Which of the following options are incorrect?
TLS Online TPP Program

#Question id: 23153

#Unit 13. Methods in Biology

SNARF-1is a fluorescent dye used to measure which ion concentration?
TLS Online TPP Program

#Question id: 23154

#Unit 13. Methods in Biology

When the organelles pH is acidic the how the SNARF-1 dye measures this acidity?
TLS Online TPP Program

#Question id: 23155

#Unit 13. Methods in Biology

Match the following ions in column I with their relevant dyes column II.
Column I                                                       Column II
1. K+                                                                 a. Fura-2
2. Ca2+                                                             b. SNARF-1
3. H+                                                                 c. Ion potassium green
Which of the following options is correct?
TLS Online TPP Program

#Question id: 23156

#Unit 13. Methods in Biology

Most widely used method of detecting specific proteins, uses an antibody to which a fluorescent dye has been covalently attached