Answer: Sickle hemoglobin differs from normal hemoglobin by a single amino acid: valine replaces glutamate at position 6 on the surface of the beta chain. This creates a new hydrophobic spot (shown white). ... The polymerized hemoglobin distorts red blood cells into an abnormal sickle shape.
Explanation:
True, the use of many household chemicals, and even the use of barbecue can cause toxic air pollution
This is known as parasitism.
In biology, parasitism is a relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life.