root tip of onion and mitosis cell in the root tip of onion under a microscope.

abnormal and are background basophil biology blood bone care cell cells diagnosis disease diseases eosinophil eosinophils health healthcare hematology hematopoietic hospital human immune infection infectious laboratories laboratoriesn laboratory leucocytes leukemia leukocyte leukocytes lymphocyte medical medicine microbiology microscope microscopen mitosis monocyte neutrophil onion patient pattern platelets protection rbc red root science scientific shape slide smear sphere stained study system test tip under white