Which of the following is not correctly matched for the organism and its cell wall degrading enzyme?

1. Plant cells- cellulose

2. Algae - Methylase

3. Fungi - Chitinase

4. Bacteria - Lysozyme

DNA fragments generated by the restriction endonucleases in a chemical reaction can be separated by :

1. Polymerase chain reaction

2. Electrophoresis

3. Restriction mapping

4. Centrifugation

The colonies of recombinant bacteria appear white because of:

The figure below is the diagrammatic representation of the E. coli vector pBR 322. Which one of the given options correctly identifies its certain components (s)? 

1. Ori-original restriction enzyme

2. Rop-reduced osmotic pressure

3. Hind III, Eco RI-selectable markers

4. Amp^R, teti^R-antibiotic resistance genes

Which one of the following is a case of wrong matching?

1. Somatic hybridization- Fusion of two diverse cells

2. Vector DNA- Site for tRNA synthesis

3. Micropropagation- In vitro production of plants in large numbers

4. Callus - Unorganized mass of cells produced in tissue culture

Which one is a true statement regarding DNA polymerase used in PCR?

1. It is used to ligate introduces DNA in recipient cells

2. It serves as a selectable marker

3. It is isolated from a virus

4. It remains active at high temperature

For transformation, microparticles coated with DNA to be bombarded with gene gun are made up of

1. Silver or platinum

2. Platinum or zinc

3. Silicon or platinum

4. Gold or tungsten

1.  Coelom

2.  Coenzyme

3.  Coli

4.  Colon

1.  tissue culture

2.  PCR

3.  gel electrophoresis

4.  spectrophotometry