MCQ
In an ecosystem which of the following are important components
- AEnergy flow and food chain
- BMineral recycling and energy flow
- CFood chain and decomposers
- ✓All the above
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$I.$ Polymerase Chain Reaction $(PCR)$ is a technique of synthesizing multiple copies of the desired gene in vitro
$II.$ This technique was developed by Kary Mullis in $1985$
$III.$ A single $PCR$ amplification cycle involves three basic steps; denaturation, annealing and extension
Which of the statement given above are correct?
$Y$ - Strong magnetic field is used in $CT-SCAN$ to diagnose cancer