Turner syndrome is on a chromosome?
if so, which one?
What's wrong with it?

X chromosomes

X chromosomes

Explanation:

Turner syndrome, a condition that affects only females, results when one of the X chromosomes  is missing or partially missing. Turner syndrome can cause a variety of medical and developmental problems, including short height, failure of the ovaries to develop, and heart defects.

the right answer is it connects amino acids

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation: