TLS Online TPP Program

#Question id: 5251


What do transduction, transformation, and conjugation have in common?

#SCPH28 | Zoology
  1. All require presence of an outside factor to facilitate gene transfer.

  2. In all three processes, DNA is transferred as a single stranded molecule.

  3. They all transfer large pieces of DNA into recipient cells.

  4. none of the above.

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TLS Online TPP Program

#Question id: 23150

#SCPH06 I Botany

How fura-2 dye moves inside the cell through plasma membrane?

TLS Online TPP Program

#Question id: 23151

#SCPH06 I Botany

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

#SCPH06 I Botany

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

#SCPH06 I Botany

SNARF-1is a fluorescent dye used to measure which ion concentration?

TLS Online TPP Program

#Question id: 23154

#SCPH06 I Botany

When the organelles pH is acidic the how the SNARF-1 dye measures this acidity?

TLS Online TPP Program

#Question id: 23155

#SCPH06 I Botany

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?