ATM and ATR are protein kinases that become activated following specific types of DNA damage. 

A. ATM becomes activated in response to double‐strand breaks, which are detected by the MRN protein complex. 

B. ATR becomes activated by protein‐coated ssDNA that forms when replication forks become stalled or the DNA is being repaired after various types of damage.

C. ATR phosphorylates and activates the checkpoint kinase Chk2, which phosphorylates p53. D. ATM phosphorylates and activates the checkpoint kinase Chk1, which phosphorylates and inactivates the phosphatase Cdc25.

Which of the following combination is incorrect?

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#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?

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#Question id: 7532

#General Aptitude

A train running at 36 kmph crosses a mark on the platform in 8 seconds and takes 20 seconds to cross the platform. What is the length of the platform ?

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#Question id: 7533

#General Aptitude

A 3 m long car goes past a 4 m long truck at rest on the road .The speed of the car is 7 m/s . The time taken to go past is

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#Question id: 7534

#General Aptitude

A person wanted to travel from charabag to Alambag with an average speed of kmph by car. The distance between Charbag and Alambag is 2 km . Due to heavy traffic, he could travel at 30 kmph for the first kilometer of his journey . What should his speed his speed be for the remaining journey to achieve his average speed target of 60 kmph ?

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#Question id: 7535

#General Aptitude

Ratio between speed of boat in still water to speed of stream is 5 : 2. If 224 km is travelled by downstream in 4 hours then find the difference between speed of boat in still water and speed of stream?

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#Question id: 7536

#General Aptitude

Two stations A and B are 220km apart on a straight line. One train starts from A at 7 am and travels towards B at 20km/hr speed. Another train starts from B at 10 am and travels toward A at a speed of 20 km/hr. At what time they will meet?