What are the phrase options ??
Answer:
An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. Instability of an atom's nucleus may result from an excess of either neutrons or protons.
Explanation:
The base of an adenine molecule is made of ribose sugar molecules
Here is the correct answer: <span>Most homologous pairs look alike. They carry genes for the same characteristics and line up on the chromosome in the same order
i hope this helps you out</span>
