Exercise-3

The process of separation and purification of expressed protein before marketing is called

What is the criterion for $\mathrm{DNA}$ fragments movement on agarose gel during gel electrophoresis?

A gene whose expression helps to identify transformed cell is known as

The DNA fragments separated on agarose gel can be visualised after staining with:

Which of the following is commonly used as a vector for introducing a $\mathrm{DNA}$ fragment in human Iymphocytes?

Assertion : Agrobacterium tumefaciens is popular in genetic engineering because this bacterium is associated with the roots of all cereal and pulse crops.

Reason : A gene incorporated in the bacterial chromosomal genome gets automatically transferred to the crop with which the bacterium is associated.

Assertion : The uptake of DNA during transformation is an active, energy requiring process.

Reason : Transformation occurs in only those bacteria, which possess the enzymatic machinery involved in the active uptake and recombination.

Linking of antibiotic resistance gene with the plasmid vector became possible with