The number of protons plus that number of neutrons equals the atomic number atomic mass atomic weight atomic neutrality

The number of protons plus the number of neutron equals the ATOMIC MASS.
An atom is made up of three different particles which are proton, neutron and electron. The proton and the electron reside in the nucleus of the atom while the electron orbit the nucleus. The number of proton plus the number of neutrons in the nucleus of an atom gives the atomic mass of that atom.

The answer would be c, white eyes are homozygous recessive. in the early 1900s, morgan conducted several experiments with vinegar  flies (drosophila). one  sample revealed an anomaly: a  white-eyed, single male fly. he attempted to breed this fly with the typical red-eyed females. the offspring were all red-eyed. using flies from this new generation (brother-sister pairs)  produced some red-eyed and a few white-eyed flies. the white-eyed were all male. in later experiments, he was able to produce white-eyed females. this proved that white eyes are not lethal to either sex (ruling out a and b). since the percentage of white eyes to red eyes is so low, white eyes are not a dominant trait. it would be a recessive trait.