Name the DNA polymerase which is usually used for PCR.

Name the source of DNA polymerase used in PCR technique. Mention why it is used?

Polymerase chain reaction is useful in

Write any two uses of PCR.

The enzyme DNA polymerase in E.coli is a DNA dependent polymerase and also has the ability to proof read the DNA strand being synthesised.Explain. Discuss the dual polymerase.

Name the enzyme which is used to link DNA segments together.

Name the enzyme which is used to link two fragments oi DNA by covalent bonds.