Mendel conducted a cross between purebred organisms. Use a punnett square to show a cross between a purebred pea plant with yellow seeds and a purebred pea plant with green seeds. What would be all of the possible genotypes of all the offspring? A. 100% yy
B. 100% Yy
C. 50% Yy and 50% yy
D. 75% Yy and 25% yy​

At the complete end of cellular respiration, how many molecules of atp are produced?               a.  15    b.  26    c.  38    d.  34 

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.

What are the proteins in connectivity tissues of your foot examples of?