Some of the most common diseases are infections caused by bacteria, such as Campylobacter, Salmonella, Shigella, E. coli O157:H7, Listeria, botulism, and norovirus.
A genotype is the actual genetic coding for an organism. A phenotype is the physical appearance. For example, let's say BB or Bb is the coding for black hair. BB/Bb is the genotype, and the black hair is the phenotype.
An example to prove the point is sickle cell anemia. The genotype of sickle cell is caused by a single base pair change in the beta-globin gene: normal=GAG (glu), sickle=GTG (val). There are several phenotypes associated with the sickle genotype: -. 1  anemia (a recessive trait).2  blood cell sickling (co-dominant).3  altered beta-globin electrophoretic mobility (co-dominant).n example to prove the point is sickle cell anemia. The genotype of sickle cell is caused by a single base pair change in the beta-globin gene: normal=GAG (glu), sickle=GTG (val). There are several phenotypes associated with the sickle genotype: -. 1  anemia (a recessive trait).