In the image of the plant leaf above, what do Q, R, and S represent?

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;

whats the answer to your question?

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: