Which of the following statements best describes a neutron's charge?
1. a neutron has a positive electrical charge.
2. a neutron has no electrical charge.
3. a neutron has a negative electrical charge.
4. it is unknown whether or not a neutron has an electrical charge.

a  proton  has positive charge of 1, that is, equal but opposite to the charge of an  electron. a  neutron, like the name implies, is neutral with no net charge.

the charge is believed to be from the charge of the  quarks  that make up the nucleons (protons and neutrons). a proton is made of two up quarks, with 2/3 positive charge each and one down quark with a negative 1/3 charge (2/3 + 2/3 + -1/3 = 1). a neutron is made up of two down quarks with a negative 1/3 charge each and one up quark with a positive 2/3 charge. (-1/3 + -1/3 + 2/3 = 0).

In this experiment, you will breed mice to investigate the role of genes when parents pass traits down to their offspring. The question that can be framed for this information is How genes are responsible for transmitting traits in offsprings of mice after parental breeding?