Nanochick wrote:
] inignoct wrote:
] ] ]] A controversial IVF technique could see babies
] ] ]] being born with three parents, scientists have suggested.
]
] ] ]]
] ] ]] Experts in China say they have created embryos using eggs
]
] ] ]] from two women and sperm from one man...
] ] ]
] ] ]Marie, should this be legal or not?
] ]
] ] i have no problem with this. they're just using a healthy
] ] woman's egg cell as a carrier, right? there shouldn't be
] any
] ] of the donors DNA left to complicate the fertilization.
] ]
] ] it's like, one lady had a cracked mixing bowl, so she
] borrowed
] ] her neighbors bowl in order to mix up the ingredients for
] some
] ] cookies. as long as the neighbors bowl wasn't still caked
] ] with paprika and chili powder from her own cooking, the
] ] cookies should be fine, untainted by her neighbors recipe.
] ]
] ] seems like calling it three-parent is misleading if the
] donor
] ] of the "blank egg" has no genetic effect. does the
] cytoplasm
] ] have more to do with embryonic development than i think it
] ] does? a genetic or mechanical influence?
]
] I am not sure that this should be legal. Seems to me, and it
] states in the article as well, that this is getting a tad too
] close to human cloning for my tastes. Yes, there is genetic
] material found in the cytoplasm of a cell, namely the DNA
] found in the mitochondria. So basically, they are mixing DNA
] from three different adults. The mixing bowl analogy would be
] better suited when there is a surrogate mother involved...in
] that sense, the mixing bowl would be the womb, and nothing
] else.
] This procedure causes an child to be born with three differnt
] kinds of DNA, which could cause problems scientists have never
] even run into. It raises an interesting scientific question
] about what would happen, though. As of now, your nuclear DNA
] is a mix of your parents DNA, while mitochondrial DNA is only
] inherited from your mother. Seems to me, that due to the fact
] that you can only inherit it from your mother, cellular
] machinery may rely on that assumption in some way.
] Either way, its too close to human cloning, which is shady as
] hell:)

Eggs from a woman with the same mitochondrial DNA as the nuclear DNA donor's wouldn't be hard to come by. Just use a relative, with a female-female birth connegtion. Personally, I don't have a problem with this procedure.

RE: BBC NEWS | Health | Foetus with three parents created