Qualities of a Good Vector

Q. The most commonly used selection marker is ampicillin resistance gene.

1. True
2. False

Q. Which of the following key factors makes the plasmid a good vector in genetic engineering?

1. Plasmid has an Ori sequence
2. It is self replicating
3. It has ability to carry a foreign gene
4. Its ability to cause infection

Q.

What are plasmids? How does transfer of genetic materials take place by employing plasmids?