MCQ
What is true about $DNA$ polymerase used in $PCR$ ?
- AIt is used to ligate introduced $DNA$ inrecipient cells.$I$
- BIt serves as selectable marker.
- CIt is isolated from virus.
- ✓It is thermostable enzyme.
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$(a)\; DNA$ is negatively charged molecule and so it is loaded on gel towards the Anode terminal
$(b) \;DNA$ fragments travel along the surface of the gel whose concentration does not affect movement of $DNA.$
$(c)$ Smaller the size of $DNA$ fragment larger is the distance it travels through it.
$(d)$ Pure $DNA$ can be visualized directly by exposing UV radiation.
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