Question

In 2001 scientists reported the successful use of gene therapy to treat three dogs that had been born blind. the animals' blindness was the result of a mutated gene. explain the steps that the scientists probably would have used to restore sight to the dogs

Answer 1

The scientist would probably use the following steps to restore the dogs' eyesight.
>Since normal gene is carried by harmless virus, scientists inject the virus into the eyes of the blind dogs. 
> Virus injected contains normal genes which replace the defective ones. This process is called gene therapy.
> After the process, the dogs can now see.