In flow cytometry, cell subsets are labeled using a fluorescent antibody to a membrane protein. the fluorogen is activated by a(n) as the cells pass by the detectors.

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.