An indicator for a protein is added to a solution that contains protein and to a solution that does not contain protein. state one way, other than the presence or absence of protein, that the two solutions may differ after the indicator has been added to both. [1]

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.

How do you transfer mrna into codons ? i'm so confused : (

What are the pros and cons of transect sampling?