Answer:
Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.
Explanation:
Neurotransmitters are chemicals released at axon terminals to a target cell to continue to action potential
So Male is AB
and Femlae is AO
so on crossing there ;
........A ......O
A....AA... AO
B ...AB... BO
So genotypes ; AA , AO , AB, BO
And phenotypes; Blood types A, AB , B
*used dots in punnet as i do not get proper spacing !!