Genetic screening and ethical issues Quiz
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5 questions, one answer each
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1. Which test can be carried out first in a pregnancy?
- A. Amniocentesis at 16 weeks
- B. Chorionic villus sampling at 11 weeks
- C. PGD after birth
- D. Blood test of the father only
2. Why is PGD possible at the eight-cell stage without harming the embryo?
- A. The cells are totipotent and unspecialised
- B. Each cell is already a different organ
- C. The embryo has no DNA at this stage
- D. The removed cell is replaced by IVF
3. Two carriers of a recessive allele use PGD to test eight embryos. How many are expected to have the disorder?
- A. 1
- B. 4
- C. 3
- D. 2
4. Which statement is a utilitarian argument for PGD?
- A. Embryos are human life from fertilisation
- B. It prevents suffering for the child and family
- C. It could lead to designer babies
- D. Parents have no right to choose
5. Which is a risk common to both amniocentesis and CVS?
- A. Infection of the child after birth
- B. Loss of the carrier allele
- C. Miscarriage
- D. Damage to the mother's DNA