61). A transgenic food crop, which may help in solving the problem of night blindness in developing countries is
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62). Insect resistant cotton plant have been genetically engineered by inserting a gene from a
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63). Study the following statements 1. In Bt cotton, a transgenic plant, Bt refers to Bacillus thuringiensis. 2. Natural genetic engineer is Agrobacterium tumefaciens. 3. In bacteria, plasmid is a extrachromosomal material. Which of the statement(s) given above is/are true?
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64). Match List I with List II and select the correct answer using the codes given below the lists.
Below the Codes are given in A B C D order
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65). The method of reproduction of new plants by cells instead of seed is known as
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66). What is the purpose of the 'restriction enzymes' used in the genetic engineering?
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67). By using which one of the following techniques, is DNA fingerprinting done?
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68). Consider the following statements 1. Introduction of foreign genes for improving genotype is genetic engineering. 2. Genetically engineered human insulin is manufactured by the use of E. coli. 3. Advancement in genetic engineering has been possible due to discovery of restriction endonuclease. 4. First hormone prepared by genetic engineering is insulin. Which of the statements given above are correct about genetic engineering?
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69). Study the following statements 1. The first transgenic crop was tobacco. 2. A DNA library constitutes a collection of all the DNA fragments of an organism inserted in plasmid. 3. Restriction fragment length polymorphism method is used to distinguish DNA of one individual from another. 4. Agrobacterium tumefaciens is used extensively for genetic engineering in plant. Which of the statements given above are true?
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70). What is the purpose of restriction enzymes used in genetic engineering?
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