As of May 2011, the average hourly wage of a mail sorter was $23.26, an annual salary of approximately $48,380. Eighty percent of mail sorters reported receiving hourly wages of between $12.01 and $25.53.
Cross definition, a structure consisting essentially of an upright and a transverse piece, used to execute persons in ancient times. See more.
test cross. A test cross is a way to explore the genotpye of an organism. Early use of the test cross was as an experimental mating test used to determine what alleles are present in the genotype. An organism's genetic makeup is called its genotype, and it reflects all of the alleles, or forms of the gene, that are carried by the organism. Consequently, a test cross can help determine whether a dominant phenotype is homozygous or heterozygous for a specific allele.