Practice Questions

TLS Online TPP Program

#Question id: 4001

Which is not true about the lac repressor?

#Unit 3. Fundamental Processes

Its gene is part of the lac operon and is transcribed along with lacZ, lacA and lacY.
When it binds to DNA, it forms a loop-type structure.
It likely blocks both RNA polymerase binding as well as transcription initiation.
It binds to DNA by interaction of an α-helix with the major groove.

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TLS Online TPP Program

#Question id: 7526

#General Aptitude

Walking from my home, at a speed of 5 km/h, I am 8 minutes late in reaching my office.If I walk at a speed of 8 km/h, I reach 5 minutes late. How far is my office from the house?

TLS Online TPP Program

#Question id: 7527

#General Aptitude

A train is running at a speed of 72 km/h . it crosses a platform whose length is half that of the train in 30 seconds. what is the length of the platform?

TLS Online TPP Program

#Question id: 7528

#General Aptitude

A 220 metres long train running at the speed of 110 kilometer per hour process another train running in opposite direction at the speed of 70 km per hour in 7 seconds. what is the length of the other train?

TLS Online TPP Program

#Question id: 7529

#General Aptitude

A jogger Running at 10 km/h allong side aur railway track in 150 m i head of the engine of a 300 M long train running at 64 km/hr in the same direction in how much time will the train pass the Jogger?

TLS Online TPP Program

#Question id: 7530

#General Aptitude

Two trains are moving in opposite directions at 72 km per hour and 90 km per hour . Their lengths are 500 m and 400 m respectively. the time taken by the Slower train to cross the faster train is

TLS Online TPP Program

#Question id: 7531

#General Aptitude

Two runners A and B start running from diametrically opposite points on a circular track in the same direction. If A runs at a constant speed of 8 km/h and B at a constant speed of 6 km/h and A catches up with B in 30 minutes , what is the length of the track?