Sodium vs Potassium. Sodium and Potassium are naturally occurring alkaline metals that show many similarities in their behaviors. Both sodium and potassium ions are essential for all life forms. Both ions are highly reactive and easily dissolve in water which is why both are found more in seawater than on land.
A segment of DNA on a chromosome that controls the production of a  protein is called a gene. Chromosome a cellular structure that  contains DNA.Edit. Share to: JD Heyl.15,441 Contributions. Textbook author, biology researcher. Genetics Supervisor. In Biology. segment of DNA on a chromosome that controls the production of a  protein is called a gene. Chromosome a cellular structure that  contains DNA. Edit. Share to: JD Heyl. 15,441 Contributions. Textbook author, biology researcher. Genetics Supervisor.
Chromosomes and genes. Chromosomes, found in the cell nucleus [nucleus: Controls what happens inside the cell. Chromosomes are structures found in the nucleus of most cells.], contain many genes. A gene is a section of DNA [DNA: The material inside the nucleus of cells, carrying genetic information. DNA stands for Deoxyribonucleic Acid.], which carries coding for a particular protein proteins: organic compounds made up of amino acid molecules.