embryo screening
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16 Terms
Give the thrreemethods of embryo screening
PGD, CVS, Amniocentesis
What does PGD stand for?
Pre-implantation genetic diagnosis
What does CVS stand for?
Chronic Villus Sampling
PGD applies ONLY to…
IVF
What happens in Pre-implantation Genetic Diagnosis?
One cell is removed from each IVF embryo and then analysed the genome for faulty genes.
In PGD, what do they do with embryos with faulty/mutated genes
DESTROY THEM.☠☠💉🩸🩸🔥🔥👺👺😱😱⚰⚰🪦
What happens with healthy embryos in PGD?
They are implanted into the mothers uterus
What is the purpose of Chronic Villus Sampling?
Used to identify genetic disorders in foetuses
The Chorionic Villus is part of what?
The placenta
Does the Chorionic Villus have the same DNA as the mother or the foetus?
The foetus
What time period does CVS typically take place during pregnancy?
10-12 weeks
What will happen if the baby has a genetic disorder in CVS?
The parents can decide whether or not they should terminate the pregnancy
All three analyse…
Cells, either from the embryo (PGD) or foetuses (CVS and amniocentesis)
What time period does amniocentesis take place?
15-16 weeks pregnant
What happens in amniocentesis?
A needle is injected into the amniotic sac to extract amniotic fluid which contains cells of the foetus to analyse
Cells from the foetus are found in the…
Surrounding amniotic fluid