A phenotype is a trait we can observe. Genes carry instructions, and the result of our body following those instructions (for example, making a pigment in our eyes), is a phenotypic trait, like eye color.
The medical term for expanding or opening wider is. apnea. the medical term for lack of or absence of breathing is. tissue. the medical term for groups of cells with the same function is. cell. the medical term for the basic unit of body structure is. menarche.
Healthgrades Editorial Staff. Shortness of breath is a common symptom of allergy, infection, inflammation, injury, or certain metabolic conditions. The medical term for shortness of breath is dyspnea. Shortness of breath results when a signal from the brain causes the lungs to increase breathing frequency.