Not exact matches
With regard to Callahan's comparison
of the lives
of PVS patients with the lives
of «
fertilized eggs,» I would simply note that once an
egg has been
fertilized it is no longer an
egg but a new living being, and in the
case of the human species, a new human being — surely a being
of incomparably greater value than an «
egg.»
In the
case of zebrafish, less than 20 percent
of fish produced by injecting DNA into
fertilized eggs will transmit the foreign gene to the next generation.
In most
cases, this is how the process unfolds: «Through an IVF cycle, you take the
egg from the mom and
fertilize it with the dad's sperm, then transfer the embryo into the uterus
of a gestational carrier,» explains reproductive endocrinologist Naveed Khan, MD,
of Shady Grove Fertility in Leesburg, Virginia.
Luteal Phase: During this phase, a rise in progesterone maintains the thickened wall
of the uterus in
case an
egg is
fertilized.