Insertional inactivation of a gene helps in
a. Identification of recombinant clones
b. Identification of deletion mutants
c. Identification of recombinant transformants
d. Elimination of suppression mutants

What is true about the DNA polymerase used in PCR?

Biolistic method makes use of microparticles coated with DNA bombarded at cells to be transformed. These particle are made up of
a. Zinc or tungsten
b. Silicon or gold
c. Tungsten or gold
d. Selenium or Platinum

Insertional inactivation of the lac Z gene forms-

Two bacteria found to be very useful in genetic engineering are

Which of the following would you choose as the safest and least cumbersome selectable marker-

The visualization of the DNA bands on the gel can be done with the help of

Plasmids are good vectors for genetic engineering because

Why is a marker gene useful?

1. It shows you whether the gene being added, has been taken up or not.

2. It's a way of labelling which gene you want to modify.

3. It sticks with the striker gene.

4.  It marks the position of r-DNA

The introduction of genes into plant cells often makes use of
a. Disarmed Agrobacterium vectors
b. disarmed retroviral vectors
c. Ti plasmid of Agrobacterium
c. Ri plasmid of Agrobacterium