can DNA be injected to another human for a purpose?

Answer 1

Yes and no. It depends on how you do it and what purpose you are after.

Even if you do little more than inject a syringe full of raw DNA into someone's blood, some very small amount of the DNA will be integrated into nearby cells. This has been confirmed by recent studies. The amount that will be integrated is very small, but it can happen (I hope you have a big syringe).

It's also possible to be more sophisticated about it. Scientists have replaced viral DNA with DNA segments of their own choosing, as well as the proper materials to force its integration into host cells. This does much better: the virus naturally injects DNA into the cells and the right stuff is there to make it stay there. This can and has been done on humans to permanently alter their DNA, with some modest success.

The procedure is not perfect, however. Because it looks like a virus, your body tries to fight it off just like the naked DNA above. Because the viral particles aren't directed from the outside, they tend to infect whatever cells they contact randomly - there isn't a way to have them get EVERY cell, even in a small area. Worst of all, because the new DNA is just jammed in wherever, there is the potential that it interrupts something important which can kill the cell or turn it cancerous. Not good, but sometimes better than the alternatives.

A third possibility which is just being tested involves cloning. By modifying a host's DNA and putting it into a stem cell, the resulting cell might divide into whole tissues and organs, allowing a lot better specificity and coverage. We don't know, however, how well these would be integrated into the host... experiments are just beginning.

So yes. A person's DNA CAN be modified. Not well. But it is possible. Even now.

Answer 2

Which purpose? But injected DNA into the human body would do nothing. The cells would different enzymes to break it down. Even if the DNA, supposedly, got it to our DNA and bonded to it, then that will cause cancer other other problems. Remember, DNA cannot replicate by itself. So the purified DNA may be, just say, 600ug/uL. This is infect the cells around that area, but it won't be enugh to cover all of the cells and hence may/will cause cancer.
Overall, the cells have different restriction enzymes to block against this and the DNA may degrade because of the temperature of the body.
good luck.

Answer 3

Well, first off, what purpose would there be to inject DNA from one purpose into another?
I don't think that DNA transplants are possible and if science has advanced to this extent already, then there several moral and ethical implications involved.

Answer 4

you can't inject DNA for a purpose, but there is research into using certain injections to change DNA. they would use an engineered virus, because viruses operate by changing DNA (they cause the cell to produce copies of the virus, that's how they reproduce)

Answer 5

Depends on where it's injected. Injecting DNA in the blood stream, intra-muscularly or intra-dermally will serve no purpose whatsoever. However, if it is injected intra-cellularly, there may be a chance.