Which artificial cloning vector was constructed by Boliver and Rodriguez in 1977 ?

What are cloning vectors ?

What are cloning vectors?

pBR322 was the first artificial cloning vector to be constructed. What does "BR" stands for ?

Which of the following is not a cloning vector ?

Which acts as a vector to transfer a piece of DNA ?

Why are cloning vectors bacteriophages sometimes preferred over bacterial plasmids ?

Read the given statements and select the correct option. Statement 1 : The cloning vector is required to have very few, preferably single, recongnition sites for the commonly used restriction enzymes. Statement 2: Presence of more than one recongnition sites within a cloning vector will generate several fragments, which will complicate the process of gene cloining. 1) Both statements 1 and 2 are correct 2) statement 1 is correct but statement 2 is incorrect 3) statement 1 is incorrect but statement 2 is correct 4) None of the above