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Foundations of Ethics with Special Reference to Issues in Medical Ethics

PGD, embryo research, mitochondrial donation and the HFEA

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Overview

Pre-implantation genetic diagnosis, saviour sibling and designer baby objection.

What you need to know

Answer each one before you reveal it.

Your recallNot started
Key term

How does the equal dignity objection apply to embryo selection?

Key term

What is the fourteen-day rule?

Evaluation

Give the main argument against research on early embryos.

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    What is pre-implantation genetic diagnosis?

    Model answer

    Pre-implantation genetic diagnosis is the testing of embryos created by in vitro fertilisation for a specific genetic condition, so that only unaffected embryos are transferred.

  2. 2

    What is a saviour sibling?

    Model answer

    A saviour sibling is a child selected as an embryo because their tissue matches that of an existing sick brother or sister who needs a transplant of cells or tissue.

  3. 3

    What is the designer baby objection?

    Model answer

    The designer baby objection is that selection for disease will not stop there, and that parents will come to choose embryos for traits such as sex, appearance or ability.

  4. 4

    How does the equal dignity objection apply to embryo selection?

    Model answer

    Disability campaigners argue that screening out embryos with a given condition tells people living with that condition that their lives were avoidable, which denies their equal dignity as citizens.

  5. 5

    Give the reply made by defenders of pre-implantation genetic diagnosis.

    Model answer

    Defenders reply that preventing a disease is not a judgement on those who live with it, and that parents who have watched a child suffer are entitled to spare another that suffering.

  6. 6

    What is the fourteen-day rule?

    Model answer

    The fourteen-day rule allows research on human embryos only up to fourteen days after fertilisation, at which point the primitive streak appears and the embryo can no longer divide into twins.

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