12th Class Biology Sample Paper Biology - Sample Paper-4

  • question_answer
    (i)  What is golden rice?
    (ii) What is gene therapy? Can it be used for treatment of sickle -cell anaemia, haemophilia and thalassemia?

    Answer:

    (i)  Golden rice is transgenic rice having gene for synthesis of vitamin A.                                     
    (ii) Gene therapy is alteration of specific genes to modify the patient's genotype for the treatment of hereditary diseases like haemophilia and phenylketonuria. Yes, It can be used for treatment of sickle cell anaemia, haemophilia and thalassemia by transplanting defective genes by correct ones.


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