If sea water surrounding coral reefs becomes too hot the algae die, so that the coral loses its colour and looks white. This process is called coral bleaching. Coral bleaching events can be recorded from satellites in orbit around the Earth.

Suggest ONE benefit of using satellites for recording bleaching events.

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)

the answer would be d : p

its probably to later but whats the question