In gene therapy, .......... can be treated by gene DNase.
A
Pituitary dwarfism
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B
Hepatitis -B
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C
Hemophilia
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D
Cystic fibrosis
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Solution
The correct option is C Cystic fibrosis
Cystic Fibrosis is a disease that affects the lungs. It is an autosomal recessive disease characterized by the excess secretion of thick and sticky mucus in the lungs.
A mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) gene leads to cystic fibrosis.
This disease can be treated by gene therapy using the enzyme DNase that is a DNA-breaking enzyme.
This enzyme breaks the DNA strands of the mucus generating cells thereby reducing muscus viscosity in the lungs of such patients.
Hence this process of gene therapy decreases the mucus generation in the lungs. Thus the correct answer is option D.