The type of cancer that is characterized by abnormal increase in the number of white blood cells is

Describe the iron sulfide hypothesis and the lipid membrane hypothesis.

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

Were you able to observe the nucleolus in any of the cells if so which ones