MCQ
In gel electrophoresis, separated $DNA$ fragments can be visualized with the help of
- AEthidium bromide in infrared radiation
- BAcetocarmine in bright blue light
- ✓Ethidium bromide in $UV$ radiation
- DAcetocarmine in $UV$ radiation
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Assertion $(A):$
Polymerase chain reaction is used in DNA amplification
Reason $(R):$
The ampicillin resistant gene is used as a selectable marker to check transformation
In the light of the above statements, choose the correct answer from the options given below :
Reason : A gene incorporated in the bacterial chromosomal genome-gets automatically transferred to the crop with which the bacterium is associated.