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Embryo = sperm + egg join together
after 24 hours of conception
Embryo begins to divide
Day 3 ­ 16 cells. Individual cells differentiate
to amniotic sac and embryo
To develop further implantation in uterus
must occur (end of first week to second
Day 14 ­ primitive streak (spinal cord and
backbone)…read more

Slide 3

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Embryos can be researched on
for the following reasons:
Promoting advances in
treatment of fertility.
Increasing knowledge of miscarriages and
congenital disease
Increasing knowledge of embryos and serious
Developing more effective contraception
Developing methods for detecting the
presence of gene or chromosome
abnormalities before implantation.…read more

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Embryos are "human"
enough therefore
viewed as more
valuable than mice
etc to experiment on
But not "human" enough for rights.
Experimentation allowed up to 14 days, they
are then destroyed so they don't reach the
primitive streak.
Possible to create embryos in laboratories,
cloned through therapeutic cloning.
Useful because of Stem Cells…read more

Slide 5

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Cells that have the
potential to become
any cell in the human
Adult stem cells limited
- repairing and replenishing body.
More knowledge = medical progress
- organs grown so donors unnecessary
- spinal columns repaired so people can walk!
"COULD" happen. Potential has not been
harnessed.…read more

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A child selected as a result of
genetic screening to have some innate
characteristic that will help save the life of
an existing brother or sister.
(FILM- My sisters keeper)
Pros= genes similar, reduce suffering, ,more
Cons = ethical? Will the child be loved? Child
would need to be put through pain and
suffering to save the other (countless
operations etc) not seen as a "real" child by
parents?…read more

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