Dna replication occurs in preperation for
a) mitosis only
b) meiosis only
c) both mitosis and meiosis
d) neither mitosis nor meiosis

I believe that it is C both mitosis and meiosis because new cells are being made

Idont know but good luck; )

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass