In certain birds, their feather color is considered a codominant trait. Chester has blue feathers. His genotype is BB, while Charlie is a white bird. Her genotype is WW. Chester and Charlie had children, what percent of their babies will be codominant? Create your key:
all blue=
blue and white=
all white=

555555555555555555555555555555555555555555555555555555555555555555555555

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: