In plants, how is alien DNA introduced into host cell?

Explain the gene gun method of DNA introduction into host cell.

Briefly explain the microinjection method to introduce alien DNA into host cell.

Explain briefly microinjection method of introducing alien DNA into host cell.

Briefly write about Gene gun method and Microinjection method for introduction of alien DNA into host cell.

Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produces (in the host cells):

Fill in the blanks ADA is introduced into cells at early__ stage.

Name the method which is used to introduce alien DNA into plant cell?

When foreign DNA is introduced into an organisms, how is it maintained in the host and how is it transferred to the progeny of organism?

Explain briefly the shot-gun method of introducing alien DNA in host cell.