Inherited Disorders and Embryo Screening Quiz

What is the inherited disorder described in the video?

• Cystic Fibrosis

• Polydactyly

• Hemophilia

• Down Syndrome

What causes polydactyly?

• Environmental factors

• Mutation in the X chromosome

• Dominant allele

• Recessive allele

If a man is heterozygous for the polydactyly allele and a woman is homozygous for the normal allele, what is the ratio of their offspring having polydactyly to those unaffected?

• 1:2

• 3:1

• 1:1

• 2:1

What is one of the issues around embryo screening?

• It is unethical to destroy healthy embryos

• It is not effective

• It is too cheap

• It is widely accepted

What is one potential future application of embryo screening mentioned in the video?

• Selecting the gender of the offspring

• Producing offspring with desirable features

• Creating clones of individuals

• Eliminating all genetic disorders

What is the main concern regarding gene therapy for inherited disorders?

• It leads to overpopulation

• It is still experimental

• It is not effective

• It is too expensive

What is the main argument against spending money on embryo screening?

• It is not a priority in the health service

• It is too complicated

• It is not ethical

• It is not effective

What is the probability of offspring being heterozygous for polydactyly if one parent is heterozygous and the other is homozygous for the normal allele?

• 25%

• 75%

• 50%

• 100%

What is the main concern regarding the creation of a large number of embryos during embryo screening?

• It is not ethical

• It leads to overpopulation

• It is too time-consuming

• Some healthy embryos are destroyed

What is the purpose of embryo screening?

• To eliminate all genetic disorders

• To identify and implant healthy embryos

• To test for desirable features in offspring

• To create clones of individuals