Simple for females those two are the exact same which is why some men suffer from more genetic diseases than women because men only have 1 X chromosome to receive that disease as the Y can hardly hold any information they have the same amount hit females have an extra set so to speak
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.
It will probably take the highest roll in the food chain which then factors to the other animals either dying, or competing for resources. making the ecosystem unstable.