Jana has red hair and freckles. Her four sisters and her mother also have red hair and freckles. Jana is very shy. However, neither her sisters nor her mother is shy.
This is an example of how
OA offspring can be similar to their parents and each other in appearance but can have different behaviors.
OB. Offspring must be exactly the same as their parents and each other in both appearance and behaviors.
OC offspring can only be similar to their parents and each other in behaviors, not in appearance.
OD offspring must be completely different from their parents and each other in both appearance and behaviors.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

69 is the correct math for the amino acids