Answer:
The nucleus binds together the protons and don't allow them to react with the freely movable electrons. The nucleus contains only neutrons and protons. Neutrons have no charge and don't react at all. Protons have positive charge. The force of attraction can't occur between the protons and electrons because of the nucleus' wall.
Answer:
A trait is any gene-determined characteristic and is often determined by more than ... by mutated genes that are inherited or that are the result of a new gene mutation. ... A karyotype is a picture of the full set of chromosomes in a person's cells.
Explanation: