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Biotechnology Objective Questions { Animal Breeding and Transgenic Animal }



22. Which of the following is/are the method of transfection for making transgenic animals?
A.Transfer of whole nuclei
B.Transfer of whole individual chromosomes or fragment
C.Transfer of DNA
D.All of the above
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23. DNA microinjection into the egg has been used to produce which of the following transgenic animals?
A.Mice
B.Chicken
C.Pigs
D.All of these
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24. Transgenic goats produce a variant of human tissue type plasminogen activator protein in
A.blood
B.urine
C.milk
D.muscles
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25. For the rapid genetic progress, embryo transfer (ET)
A.will be as potent a tool as AI (artificial insemination)
B.will not be as potent a tool as AI (artificial insemination)
C.ET can't be used at all
D.will be a superior tool than AI
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26. Enucleation of the cells can be achieved by treating the cells with
A.polyethylene glycol
B.cytochalasin B
C.both (a) and (b)
D.alcohol
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27. When the cells are enucleated and centrifuged, nuclei
A.detach from cell and settle at the bottom
B.detach from cell and remain in the supernatant
C.nuclei remain attached to the cell
D.none of the above
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28. Superovulation is an
A.increased ovulatory response by external hormonal therapy
B.increased ovulatory response by external hormonal therapy
C.decreased ovulatory response by external hormonal therapy
D.increased ovulatory response by internal hormonal therapy
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