10. How do environmental factors affect people with the Marfan syndrome?

It is found in the joints, eyes, heart, blood vessels, lungs, bones, and in the membrane covering the brain and spinal cord. Marfan syndrome can affect both men and women of any race or ethnic group. ... The genetic test for Marfan syndrome is available at most centers but is not routinely covered by insurance.

Explanation:

answer; polycythemia is the correct answer;