it is not a permanent fix. This is due to the lack of technologies that can fix the mutated genetic code in the DNA of the cells of the patient.

is that retinal tissue in the eye is shielded from the body’s defense mechanism, which would otherwise consider the injected material used in gene therapy as foreign and mount a

deoxynucleosides

organic compound DAP

Modern organisms make enzymes that can force twinned strands of RNA—or DNA

The "RNA World" hypothesis posits that the first replicators were RNA-based, and that DNA arose only later as a product of RNA life forms.

The finding is the latest in a series of discoveries, over the past several years, pointing to the possibility that DNA and its close chemical cousin RNA arose together as products of similar chemical reactions, and that the first self-replicating molecules—the first life forms on Earth—were mixes of the two.

   It’s hard to get used to seeing you like this. Do you want to live forever?                         simon          People say “forever,” they say,          “Do you want to live forever!”          And people say, “enough”:          “Haven’t you had enough?”          Wrong questions!          It’s not forever! It’s not “enough”!          It’s . . . more!          Don’t talk about enough!          Enough never is enough!          It’s more!          Ask anybody how much money          Would be enough for you?

  Why freeze your head when you’re dead?          It’s only meat! If I keep a little of my meat          For old time’s sake, what the hell,          A meaty souvenir—          It won’t be the skull!          I’ll save the heart,          Or some other juicy part.