Using sickle-cell anemia as a basis, describe what is meant by
amolecular or genetic disease. what are the similarities
anddissimilarities between this type of disorder and a disease
causedby an invading microorganism?

Sickle cell anemia is a molecular and genetic disease.

Sickle cell anemia is not infectious

Diseases caused by microorganisms are infectious.

Explanation: Sickle cell disease is a molecular disease,it involves molecular change in the structure of the molecular base present in the molecule DNA which caused the amino acids and the beta side of the hemoglobin to change accordingly.

It is genetic as it can be transferred from one generation to the next, children can inherit it from their parents.

A person can not be infected with Sickle cell anemia,it is not infectious unlike diseases caused by microorganisms that can infect others who come in contact with the disease either through blood or other routes.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands