Inherited Disorders Flashcards

1️⃣ Familiarise yourself with the flashcards:

  • Look through all the flashcards to see what’s on both sides.
  • Make sure you understand the information on each card. If something’s unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

  • Look at the question or prompt on each card and try to remember the answer before flipping it over.
  • Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

  • Use spaced repetition: spend more time on the cards you struggle with and go over them more often.
  • Regularly review all the flashcards to help you better understand and retain the information over time.

Note: We may include questions that have multiple correct answers. It’s useful to remember specific examples to understand these concepts better.

What is an inherited disorder?

An inherited disorder is a condition that arises when an individual inherits faulty genes or alleles from their parents.

How is cystic fibrosis inherited?

Cystic fibrosis is controlled by a single gene with a recessive allele (f). An individual must inherit two copies of the recessive allele (ff) to have the disorder.

How is polydactyly inherited?

Polydactyly is caused by a dominant allele (D). An individual only needs one copy of the dominant allele (Dd or DD) to have the disorder.

What are the benefits of embryo screening?

Embryo screening can reduce the number of people with inherited disorders, saving money on treatments and preventing harm and trauma caused by these disorders.

What are the ethical concerns associated with embryo screening?

Ethical concerns include the high cost, the destruction of healthy embryos, and the potential future use for selecting desirable traits, which may reduce genetic variation.

What is gene therapy?

Gene therapy involves introducing functional alleles into the cells of an individual with defective genes to treat genetic disorders. It raises ethical concerns and is still being developed for effectiveness.

You’ve used 10 of your 10 free revision notes for the month

Sign up to get unlimited access to revision notes, quizzes, audio lessons and more

Sign up