TLS Online TPP Program

#Question id: 2070


The sodium-potassium pump is called an electrogenic pump because it:

#Part-A Aptitude & General Biotechnology
  1. pumps equal quantities of Na+ and K+ across the membrane in opposite directions

  2. is used to drive the transport of glucose against a concentration gradient

  3. decreases the voltage difference across the membrane

  4. generates voltage across the membrane

More Questions
TLS Online TPP Program

#Question id: 13082

#Part-A Aptitude & General Biotechnology

Statement: AFLP shares some features of both RFLP and RAPD analyses.
Explanations: I. It uses restriction enzyme-digested genomic DNA as template for PCR amplification using primers that contain the restriction enzyme recognition sites plus a number of, usually 2-3, arbitrary nucleotides.
II. AFLPs are faster, less labour intensive and provide more information than RFLPs, and they are highly reproducible, which is a great advantage over RAPDs.

TLS Online TPP Program

#Question id: 13084

#Part-A Aptitude & General Biotechnology

Statement: In a modified version of AFLP, the selection of fragments using biotin-streptavidin binding is avoided.
Explanations: I. The fragments are ligated to the appropriate adapters and used for PCR amplification using two AFLP primers, each primer having a single selection nucleotide; this is called preamplification step.
II. The PCR products from this preamplificated step are diluted and used as template for second PCR amplification.

TLS Online TPP Program

#Question id: 13085

#Part-A Aptitude & General Biotechnology

The most common microsatellite sequence encountered in human genome is the sequence 

TLS Online TPP Program

#Question id: 13153

#Part-A Aptitude & General Biotechnology

The in-radius of an equilateral triangle is of length 3 cm. Then the length of each of its medians is

TLS Online TPP Program

#Question id: 13196

#Part-A Aptitude & General Biotechnology

 In The Mica Experiment Dnase I enzyme cleaves 

TLS Online TPP Program

#Question id: 13197

#Part-A Aptitude & General Biotechnology

In helical nature of DNA is its periodicity each base pair is displaced (twisted) from the previous one by