AQA GCSE Combined Science Trilogy · 8464
Specification 4.5.3.5 · Paper 2
Revise: Hormonal Infertility TreatmentsSeveral eggs provide more opportunities for successful fertilisation and embryo development.
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GCSE Combined Science · key term
An early developing organism formed as a fertilised egg divides.
Used by AQA
Specification 4.5.3.5 · Paper 2
Revise: Hormonal Infertility TreatmentsSeveral eggs provide more opportunities for successful fertilisation and embryo development.
For an IVF description, give the stages in order: FSH and LH → several mature eggs → egg collection → fertilisation in the laboratory → embryo development → transfer of one or two embryos into the uterus.
Distinguish embryo transfer from implantation: doctors insert the embryo into the uterus; it must then implant in the uterine lining.
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