(a)[2]
Describe the process and location of fertilisation during IVF.
(b)[2]
The embryos produced by IVF are placed into the mother’s uterus. This may happen after 3 days or after 5 days. Suggest one advantage and one disadvantage of transferring the embryos after 5 days instead of after 3 days.
(c(i))[3]
With reference to Fig. 5.1, explain why transferring a single top-quality embryo is now regarded as the best way to maximise the chance of a successful pregnancy.
(c(ii))[1]
State one ethical implication linked to transferring a single top-quality embryo in IVF.