Genetic Risks of Marrying Cousins

Which historical figures are mentioned as having married their first cousins?

• George Washington, Abraham Lincoln, Benjamin Franklin

• Leonardo da Vinci, Galileo Galilei, Nikola Tesla

• Queen Victoria, Charles Darwin, Albert Einstein

• Isaac Newton, Marie Curie, Thomas Edison

What is the genetic relationship between fourth cousins?

• They share 0.2% of their DNA

• They share 25% of their DNA

• They share 50% of their DNA

• They share 10% of their DNA

What is the chance of a child inheriting cystic fibrosis if both parents are carriers?

• 100%

• 75%

• 50%

• 25%

What is the risk percentage of genetic diseases in children of first cousins compared to the general population?

• 1 to 2% for first cousins, 0.5 to 1% for the general population

• 10 to 15% for first cousins, 5 to 6% for the general population

• 4 to 7% for first cousins, 3 to 4% for the general population

• 20 to 25% for first cousins, 15 to 20% for the general population

Why is repeated cousin marriage within a family considered dangerous?

• It introduces new diseases

• It strengthens family bonds

• It recycles potentially harmful genes

• It increases family size