Color blindness is caused by a deficiency or absence of certain types of cones in the retina. True False

The statement is True.

Color blindness, also known as color vision deficiency, occurs when there is a deficiency or absence of certain types of cone cells in the retina, which are responsible for detecting different wavelengths of light. The retina contains three types of cones: L-cones (sensitive to long wavelengths, or red light), M-cones (sensitive to medium wavelengths, or green light), and S-cones (sensitive to short wavelengths, or blue light). When one or more of these types of cones are missing or not functioning properly, an individual may have difficulty distinguishing between certain colors. This condition can be inherited genetically or caused by other factors such as certain medical conditions, medications, or age-related changes.