Final answer:
An increased count of immature neutrophils, or bands, would be represented by a separate peak on the WBC histogram distinct from the mature neutrophils, illustrating the presence of a significant number of these immature cells.
Step-by-step explanation:
If a single population of immature neutrophils is present, a WBC histogram would likely show an increased number of cells in the band at which immature neutrophils are classified. Immature neutrophils, also known as "bands," will have a nucleus that looks like a single band due to not having fully developed lobes. Neutrophils are a major type of leukocytes and are part of the body's immune system. While a typical mature neutrophil's nucleus contains two to five lobes, and in older neutrophils, the number of lobes will increase and the cell will be referred to as "polys." However, bands lack these distinct lobes and therefore, on a histogram, they would appear as a separate peak from the mature neutrophils.