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TLS Online TPP Program

#Question id: 33523

The fruit fly genome can be divided into genes as shown in the figure. Which statement is incorrect according to the figure given?


#Unit 2. Cellular Organization
  1. 20% of the fly genes have orthologs in both yeast and the worm.
  2. 20% of the fly genes are required by all eukaryotes
  3. The proportion increases to 30% when the fly and worm are compared
  4. 60% fly gene are orthologues
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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
TLS Online TPP Program

#Question id: 23157

#Unit 13. Methods in Biology

Immunofluorescence microscopy, the most widely used method of detecting