Biotechnology - Study Mode

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[#41] Hybridoma technology is a new biotechnological approach for commercial production of

(A) Monoclonal antibodies

(B) Interferon

(C) Antibiotics

(D) Alcohol

Correct Answer

(A) Monoclonal antibodies

[#42] Consider the following effects of genetic engineering. 1. Disease resistance 2. Growth promotion 3. Animal cloning 4. Human cloning Of the above, what have been tried with a certain amount of success include?

(A) 1, 3 and 4

(B) 2, 3 and 4

(C) 1, 2 and 4

(D) 1, 2 and 3

Correct Answer

(D) 1, 2 and 3

[#43] Mycorrhizal biotechnology has been used in rehabilitating degraded sites because mycorrhiza enables the plants to 1. resist drought and increase absorptive area. 2. tolerate extremes of pH. 3. resist disease infectation. Select the correct answer:

(A) Only 1

(B) 2 and 3

(C) 1 and 3

(D) All of these

Correct Answer

(D) All of these

[#44] Steps of Recombinant DNA technology are given below. 1. Identification and isolation of the genetic material. 2. Fragmentation of DNA. 3. Obtaining the foreign gene product. 4. Downstream processing. 5. Ligation of DNA fragmentation into the vector. 6. Isolation of desired DNA fragments. 7. Amplification of gene of interest. 8. Transfer of Recombinant DNA into the host cell/organism. The correct sequence of steps is

(A) 3, 1, 2, 4, 6, 5, 7, 8

(B) 1, 4, 3, 2, 5, 7, 6, 8

(C) 1, 2, 6, 7, 5, 8, 3, 4

(D) 8, 6, 7, 5, 1 , 4, 2, 3

Correct Answer

(C) 1, 2, 6, 7, 5, 8, 3, 4

[#45] By using which one of the following techniques, is DNA fingerprinting done?

(A) ELISA

(B) RIA

(C) Northern blotting

(D) Southern blotting

Correct Answer

(D) Southern blotting