Question 21

particles of matter that make up protons and neutrons are

a)electrons

b)isotopes

c)quarks

d)atoms

The particle is C) Quarks.

A quark is a kind of basic molecule and a crucial component of matter. It combines to frame composite particles called hadrons, which are nothing but protons and neutrons, which are considered as sub-atomic particle of the atom.

Because of a wonder known as shading repression, quarks are never straightforwardly watched or found in detachment; they can be discovered distinctly inside hadrons, which incorporate baryons, (for example, protons and neutrons) and mesons. Thus, a lot of what is thought about quarks has been drawn from perceptions of hadrons.

as in mitosis, dna replication occurs during interphase.   in meiosis, it occurs specifically in s phase of interphase 1.