Two fruit flies with normal wings are crossed. Among their offspring are 89 with normal wings and 35 with dumpy wings. a. What are genotypes of the parents?
b. Which trait is dominant? Which trait is recessive? Explain how you know.

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:

the correct answer should be false

{apex}