Which symptom would a person whose parathyroid is not functioning properly have? mood swings a lump in the throat area bones that break easily excess release of sweat

The correct answer is option C, bones that break easily

Parathyroid glands are parts of endocrine system and are responsible for regulating the calcium in the body. They continuously monitor and regulate the blood calcium level. Thus the deficiency or issues in the parathyroid gland impacts the calcium level in body and there by makes the bone fragile due to which they can break easily. This condition is termed as Osteoporosis.  

this is math not biology xd

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."