class 12 cbse biology practicals Viva voce questions please????

at last of your practical manual after an experiment has written
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Personally this time I was asked questions only from my project. 
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Well.. I did a project on Ebola and the external asked me questions from it but related to concepts from textbook like ELISA and reverse transcriptase etc
Also she gave no reaction to any of our answers whether we were right or wrong so just answer with maximum confidence.
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U can get questions from project which you have made and from textbook ( basic questions ).
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some questions they ask from cell division like in which stage crossing over takes place they can ask from investigatory proj.
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