Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 25381
TLS Online TPP Program

#Question id: 23192

The images imaged by conventional point-scanning confocal microscopy and by SIM, SIM improves resolution about 

#Unit 13. Methods in Biology
  1. Two fold
  2. Ten fold
  3. Hundred fold
  4. Thousand fold
More Questions
TLS Online TPP Program

#Question id: 14843

#Unit 5. Developmental Biology

In both animals and plants, undifferentiated cells go through a process of maturation that begins when they become committed to a specific cell lineage.
   
Which of the following option represents correct events regarding to series

TLS Online TPP Program

#Question id: 26380

#Unit 3. Fundamental Processes

DNA pol III core are  made up of
TLS Online TPP Program

#Question id: 15606

#Unit 12. Applied Biology

A biopolymer which is stable in extreme physical and chemical environments, and exhibits physical and chemical properties similar to those of a plastic known as
TLS Online TPP Program

#Question id: 1255

#Unit 4. Cell Communication and Cell Signaling

Following statements are regarding to the mechanism of action of cholera toxin.

A. cholera toxin is a homodimeric protein, target G proteins, interfering with normal signaling in host cells.

B. cholera toxin associates with a small G protein, known as ARF6.

C. association with ARF6 activates cholera toxin, which catalyzes the transfer of ADP-ribose from NAD+ to the critical Arg residue in the P loop of the alpha subunit of Gs.

D. ADP-ribosylation blocks the GEF activity of Gs and thereby renders Gs permanently inactive.

E. This results in continuous activation of the adenylyl cyclase of intestinal epithelial cells, chronically high cAMP, and active PKA dephosphorylates the CFTR Cl- channel and a sodium-proton exchanger in the intestinal epithelial cells.

Which of the following combination is correct?
TLS Online TPP Program

#Question id: 13099

#Unit 13. Methods in Biology

 You are a scientist who is using genomics to currently study a new bacterial species that no one has ever studied before. The following sequence is a piece of DNA within the coding region of a gene that you have recently sequenced.
 
You are using shotgun sequencing to determine the DNA sequence of the genome of this new bacterial species. For one strand of a 30-nucleotide long stretch of DNA, you get the following sequences out of your shotgun sequencing reaction. 
 
Choose correct 30-nt-long DNA sequence with the help of above-mentioned fragments