They both take place in the nucleus :)
The best answer is D.
The mass number of an element is the sum of the number of protons and the number of neutrons. Protons and neutrons both weigh about one atomic mass unit or amu.
The nucleus of an atom is made up of protons and neutrons. Both these two types of particles are almost the same size. Almost all the mass of an atom (99%) is in the nucleus. Atomic mass therefore is really a measure of the size of the nucleus.
If they find them unattractive there's a probability they wouldn't mate because they are different species and genera
Answer:
C. Ss
Explanation:
One dominant allele (S) and one recessive allele (s) indicates a heterozygous trait.
