71. Gentic engineering has been sucessfully used for producing ___
A. trangenic models for studying new treatments for Certain cardiac diseases.
B. transgenic Cow - Rosie which produces high fat milk for making ghee.
C. animals linke bulies for farm work as they have super power.
D. transgenic mice for testing safety of polio Vaccine before use in humans.
Answer : Option D
Match the following and choose the correct combination from the option given.....
Column I Column II
(a)Escherichia coli 1 - nif gene
(b)Rhizobium meliloti 2 - digestion of hydrocarbons of crude oil
(c)Bacilius thuringiensis 3 - human insulin production
(d)Pseudomonas putida 4 - Biocontrol of fungal disease
A. A = 3, B = 1, C = 5, D = 4
B. A = 1, B = 2, C = 3, D = 4,
C. A = 2, B = 1, C = 3, D = 4
D. A = 4, B = 3, C = 1, D = 2
Answer : Option C
73. Find the incorrrect statement
A. Gene therapy is a genetic engineering technique used to treat disease at molecular level by replacing defective genes with normal genes
B. Calcitonin is a medically useful recombinant product in the treatment of intetility
C. Bt toxin is a Biodegradable insecticide obtained from bacillis thuringiensis
D. Trichoderma sp. is a biocontrol agent for fungal diseases of plants
Answer : Option A
74. Production of a human protein in bacteria genetic engineering is possible because
A. bacterial cell can carry out the RNA splicing reactions
B. the human chromosome can replicate in bacterial cell
C. the mechanism of gene regulation is identical in human and bacteria
D. The genetic code is universal
Answer : Option C
75. The basis of DNA finger printing is
A. The double helix
B. Errors in base sequence
C. Poly morphism in sequence
D. DNA replication
Answer : Option D
76. A genetically engineered microorganism used successfully in biomediation of oil spillg is species of
77. What is the function of Restriction endonuclease ?
A. Restricts the synthesis of DNA inside the nucleus
B. Synthesizes DNA
C. Cuts DNA molecule randomly
D. cuts DNA molecule at specific sites
Answer : Option D
78. The nuclease enzyme which begins its attack from Free end of a polynucleotide is
80. Molecular scissors, which cut DNA at specific site