A scientific breakthrough could challenge one more argument in opposition to the Gay Agenda: Marriage is a design for procreation.
-- From "Mice created from two dads" by John Roach, contributing writer for msnbc.com 12/9/10
Reproductive scientists have used stem cell technology to create mice from two dads. The breakthrough could be a boon to efforts to save endangered species -- and the procedure could make it possible for same-sex couples to have their own genetic children.
The scientists, led by Richard Berhringer at the M.D. Anderson Cancer Center in Texas, describe the process in a study posted Wednesday in the journal Biology of Reproduction.
The study authors say their technique could be applied to animal breeding efforts, so that two males with desirable traits could be crossed without mixing in traits from females. "It is also possible that one male could produce both oocytes (eggs) and sperm for self-fertilization to generate male and female progeny," the team writes. This could help save an endangered species that no longer had females to mate with, for example.
In the future, scientists may be able to create human eggs from male iPS cells in vitro, allowing them to eliminate the need for the intermediate offspring, though a surrogate mother would still be needed to carry the two-father pregnancy to term.
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From "Mice Are Created From Two Males" by Gautam Naik, Wall Street Journal 12/10/10
Researchers at University of Texas M.D. Anderson Cancer Center and elsewhere first engineered a female mouse whose eggs contained the DNA from a male. When the female was mated with another male, the offspring had genetic contributions entirely from two males. The study appears online in the peer-reviewed journal Biology of Reproduction.
New techniques are allowing scientists to tweak the biology of reproduction in unusual ways. In April, scientists at U.K.'s Newcastle University created embryos with DNA taken from a man and two women.
Trying this in humans is a much bigger challenge. When a human embryo inherits only one X chromosome (instead of one chromosome from each parent) it tends to die. Rarely, females are born this way, called Turner syndrome, and all are infertile. And scientists would also have to find a way to create eggs without creating human chimeras, which is ethically contentious.
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