Cancer patients? Sometimes, by keeping some bad gene people alive, they live long enough to contaminate the gene pool further by breeding.
217893
If a woman with AIDS gives birth to a child with AIDS isn't it unlikely the child would grow up and give birth to a third generation, and even if this happened,  wouldn't that mean that AIDS isn't a problem with the ability of the species to reproduce?\n\nIn the abstract I disagree with you.  I think the right thing to do is find cures for problems.  Like cancer, I read in US NEWS AND WORLD REPORT about how there is a cure for ovarian cancer, or some preventative treatment or whatever.  Not having ovaries I didn't read every line dripping with interest, but more a passing curiousity. \n\nAllergies are up now cause we've left the farms for cities where theres construction, pollution, and dust mites trapped in our homes by insulation.\n\nMankind will adapt to these changes in the environment.  We will evolve and in a few generations there will be a race of men with better immune systems.
238686
I believe there are known cures of cancers and they are being held back.how can we study a disease for 30 years or more and not have a cure. why because too many people and big corps are making a fortune off of this killing disease.
503376
Because they have DNA from BOTH parents.  That is the point of sexual reproduction: mix so that each individual is a bit different, an experiement in optimisation, and has a little bit of both "successful' (since they were able to reproduce) parents.
433077
They can die from this disease.
566722
yep, tokyorose is correct. thats also why people on chemo get bad nausea too, because the lining of the GI tract is killed by the drugs. cancer cells grow faster than normal cells, many of the common chemo drugs (like mercaptopurine) by being false nucleic acids which screws up the DNA of cells that are replicating, so the treatment kills the cancer which are constantly reproducing and fewer normal cells because they dont produce as much, so you do it in waves and gradually kill of the tumor without harming the person (with the exception of hair follicles and other cells that reproduce quickly)\n\nits kind of a crappy strategy, but cancer cells have little biochemical difference from normal cells so its one of the few differences between the two that can be exploited by a drug
491047
So you can live longer...
410165
Basically this is what I learned...the body can creat abnromal mutations. A mutation being defined as something not supposed to be there....These get passed on through procreation and thus we have them.
562397
Technicallly, everybody is a mutant! We all carry some alterations unique to us in our genomes, this is part of what makes us different. And yes, over time we will evolve as a society to carry genes that are more advantageous to us due to the process of natural selection. It's a case of survival of the fittest!
163238
Yes, they discovered the gene that causes it. That should help in finding a treatment and who is at risk of having an affected child.
642249
Some people just need to fight something, for a lack of a better purpose in life.\n\nFoetus and stem cell research can allow to re-grow damaged/amputed organs or maybe even entire limbs.
64451
All people are born prone to and the possibility of getting cancer.  It's a very bad thing to get. Cancer eats you up like rotting skin, then you die. Getting it has alot to do with not keep yourself healthy. I pray tell you never get it.  Long term cancer is a hell in itself and suffering until you die.  And YES, their are cures for alot of cancer patients now a days. Their is far more hope for patients today than ever before.  Today their's medicine and kemotherapy, and their's always been that "Paying to God" thing... Dr Checko... (Nickname)
67873
If you have offspring from a first cousin, chances are good they will be a burden to society due to their mental and/or physical limitations.  Inbreeding breeds mutants...
619263
The problem with this theory is that the "gay gene" is not being passed on to the next generation, because reproduction does not transpire.  All evolutionary traits depend upon the trait being passed on to the successive generation.
177913
It still depends on genetics.
364748
It's called genetics.\n\nCoach
276121
It's called Duchenne M.S. This is inherited as a sex-linked recessive trait. Most patients die by 20 years old. It's a progressive disease process.
205749
In some states and they can reproduce fairly risk free but its still a risk and all cousins reproducing does is bring out reccessive genes so for all you know it could be a genius gene versus a bad gene its been known to happen