What happens when something goes wrong with the genetic material and how can this defect be detected?

If were talking birth defects it can be detected during pregnancy depending on which kind if defect it is. You can do many screen tests like ultrasounds or maternal blood screens for first trimester.

i believe the correct answer from the choices listed above is the first option. the scientists need to look at the   validity of data, claims, hypotheses, and observations before  developing an argument. they base their arguments on facts that are present and they make sure they have proofs. 

explanation: