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Biotechnology Objective Questions { Animal Breeding and Transgenic Animal }



15. Fusion of karyoplast with the enucleated cell is achieved in presence of
A.cytochalasin B
B.polyethylene glycol
C.both (a) and (b)
D.alcohol
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16. Which of the following statements best describes a clone?
A.An artificial life form
B.An offspring where all of the genetic material in every cell is identical to that of both parents
C.An offspring where all of the genetic material in every cell is identical to that of one of its parents
D.A type of sheep
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17. In transgenic fish, the genes are introduced by
A.microinjection in fish
B.viruses
C.transfer of whole nuclei
D.all of these
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18. Production of transgenic animals require transfections of
A.eggs or embryos
B.stem cells
C.red blood cells
D.all of these
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19. Which of the following statement is correct?
A.Variation is caused by genes
B.Variation is caused by the environment
C.Variation can be caused by both genes and the environment
D.None of the above
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20. Which of the following gene have been introduced into the transgenic fish?
A.Human or rat gene for growth hormone
B.Chicken gene for delta crystalline protein
C.E. coli gene for β-galactosidase
D.All of the above
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21. Cloning is a method by which numbers of genetically identical organisms are derived from a single organism by
A.vegetative propagation
B.vegetative initiation
C.vegetative termination
D.none of these
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