Cloning and Expression — Prelims Questions

Which of the following is NOT an essential feature of a cloning vector?

Which enzyme is responsible for joining the foreign DNA fragment with the vector DNA?

Which of the following is a common method for introducing recombinant DNA into bacterial host cells?

In the context of recombinant DNA technology, what is the primary purpose of a 'promoter' sequence in an expression vector?

Which of the following statements is INCORRECT regarding the production of human insulin using recombinant DNA technology?

After successful transformation, how are recombinant cells typically distinguished from non-recombinant cells when using a plasmid vector with an ampicillin resistance gene and a *lacZ* gene containing the cloning site?