Which is incorrect? 

(1) Specific Bt toxin genes have been isolated from Bacillus thuringiensis. 

(2) Meloidegyne incognitia does not infect the roots of tobacco plants

(3) In mammals insulin is synthesized as a prohormone

(4) ADA deficiency can be cured by bone marrow transplantation

Statement-I: Non-homologous DNA will attach to a DNA probe. 

Statement-II: At high temperature, two complementary DNA strands will anneal. 

(1) Only statement - I is true

(2) Only statement - II is true 

(3) Both statements - I and II are true

(4) Both statements - I and II are false

Match the following :-

1. I - B, II - A, III - D, IV - C

2. I - B, II - A, III - C, IV - D

3. I - B, II - C, III - A, IV - D

4. I - D, II - A, III - B, IV - C

Match the following :-

(1) I - B, II - A, III - D, IV - C

(2) I - B, II - A, III - C, IV - D

(3) I - B, II - C, III - A, IV - D

(4) I - D, II - A, III - B, IV - C

Probes are molecules of

New biotechnology utilizes new organisms developed from present organisms using
a. Mutations
b. Recombinant DNA Technology
c. Recombinations
d. All correct

The immobilization of enzymes is achieved by
a. Killing the cells without affecting enzymes
b. Attaching the enzymes covalently to a solid support
c. Entrapping the living cells in gel
d. All of these

A genetically engineered micro-organism which has found extensive use in bioremediation oil spills is a species of
a. Trichoderma
b. Mucuna
c. Pseudomonas
d. Bacillus

Incorporation of the gene for phytoene synthase and carotene desaturase to make a particular variety of yellowish rice has proven useful in the treatment of-

Cry toxin acts by