How can we make a host cell competent to receive a foreign gene or DNA?

How can we increase currentin a series LCR circuit at resonance for same ac supply?

Heat is generated in accordance with the equation H = I^2 Rt in that case How can we reduce the current without change in power ? Find out on the basis of the equation P = VxI

Can you think and answer how a reporter enzyme can be used to monitor transformation of host cells by foreign DNA in addition being a selectable marker?

Following are the various steps of recombinant DNA technology. Arrange them in correct sequential order. i. Obtaining the foreign gene product ii. Amplification of gene of interest using PCR. iii. Cutting of DNA at specific locations. iv. Downstream processing. v. Insertion of recombinant DNA into the host cell/organism. vi. Isolation of genetic material.