so the genetic characters can be transmitted

No. A coagulation defect occurs by heredity and acquired means.

To test the significance of inherited characters in the populations

Lamark's theory perhaps. Acquired characteristics clash with heredity.

What the heck? Heredity is the passing of genes. Twiddling thumbs is an acquired trait. Inherited traits is something you get from your parents like hair color. Inherited traits come from your genes that you got from your parents which is heredity.