Final answer:
Acute leukemia blasts are large, immature cells with punched-out nucleoli. They have a high nuclear-to-cytoplasmic ratio, irregularly shaped nuclei, prominent nucleoli, abnormal chromatin structure, and reduced or absent granules in the cytoplasm.
Step-by-step explanation:
Acute leukemia is characterized by the presence of large, immature blasts. These blasts often have "punched out" nucleoli, along with other characteristics. The other characteristics of these blasts include the presence of a high nuclear-to-cytoplasmic ratio, irregularly shaped nuclei, and prominent nucleoli.
Additionally, these blasts may exhibit abnormal chromatin structure, reduced or absent granules in the cytoplasm, and abnormal cell surface markers.