Individuals who acquire a health condition with no prior family history of that condition may have had exposure to a(n) – factor that caused a(n) – mutation. these mutations alter the chemical – that turn genes on or off.

Jared is sufffering from a problem on one knee. his doctor suspects nerve damage. what can jared's doctor test to confirm whether jared has a damaged nerve?

Arah is eating lunch with friends outside in the commons area of her school. one of sarah’s friends offers to share a marijuana joint with her. what could be the outcome if sarah were caught smoking marijuana at school? nothing will happen because she did not buy the joint. she could be suspended from school. nothing will happen because she is underage. the consequences would be up to sarah’s parents.

Which of these example of a hereditary risk factor? smoking, eating junk food everyday, being a couch potato, having fair skin that is prone to sunburn