Is the blood in the aorta, left ventricle and pulmonary artery oxygenated or deoxygenated?

The pulmonary vein carries the oxygenated blood from lungs to the left atrium not into the aorta. The Pulmonary artery is the carrier that carries deoxygenated blood into lungs, taking it from the right ventricle.

Explanation:

Pulmonary artery then carries deoxygenated blood to lungs where oxygen gets in by respiration. These veins finally return the oxygenated blood to the left of heart which is left atrium.

it would be c. xylem.

"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."