Answer:
Option D is correct
Explanation:
Luria broth contains yeast concentrate so it would show a marked B- galactosidase activity which is an enzyme that catalyzes the hydrolysis of B- galactosides including lactose and it is the first step of lactose fermentation.
there would be a 50 50 chance for the child to have it depending on the genes on the grandparents
Diffusion is the movement of molecules from an area where they’re at a higher concentration to areas that have a lower concentration - goo gle
