TLS Online TPP Program

#Question id: 18938


If the sequence of at least the end portions of a DNA segment of interest is known, the number of copies of that DNA segment can be hugely amplified with the 

#Unit 13. Methods in Biology
  1. immunoprecipitation
  2. pulsed field gel electrophoresis
  3. site-directed mutagenesis
  4. polymerase chain reaction (PCR)
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TLS Online TPP Program

#Question id: 10877

#Unit 7. System Physiology – Animal

A 27-year-old man is breathing quietly. He then inhales as much air as possible and exhales as much air as he can, producing the spirogram shown in the previous figure. What is his expiratory reserve volume (in liters)? 


TLS Online TPP Program

#Question id: 33513

#Unit 2. Cellular Organization

Which one of the following statements regarding mutations in the mitochondria during aging is INCORRECT?

TLS Online TPP Program

#Question id: 7508

#General Aptitude

A boat running downstream covers a distance of 12 km in 2 h while for covering the same distance upstream it takes 3 h. What is the speed of the boat in still water?

TLS Online TPP Program

#Question id: 4448

#Unit 3. Fundamental Processes

Three defined steps in a transcription cycle; choose correct one

1a. Closed complex

In this form, the DNA remains double-stranded, and the enzyme is bound to one face of the helix. I

1b. Open complex

In which the DNA strands separate over a distance of 13 bp around the start site to form the transcription bubble. In the next stage of initiation,

2. Promoter escape

Incorporation of the first 10 or so ribonucleotides is a rather inefficient process, and at that stage, the enzyme often releases short transcripts and then begins synthesis again

3. Initial transcribing complex.

Once an enzyme makes a transcript longer than 10 nucleotides, it is said to have

TLS Online TPP Program

#Question id: 29472

#Unit 6. System Physiology – Plant

Strigolactones 
a. suppress shoot branching
b. stimulate shoot branching 
c. stimulate cambial activity
d. stimulate secondary growth
Which of the following is correct