Which of the Following Statements Regarding Cotransduction Mapping Experiments Is

Multiple Choice

Which of the following statements regarding cotransduction mapping experiments is false?

A) An unselected marker screen identifies transductants for an additional donor allele of interest.
B) Selection identifies transductants that have acquired an even number of crossovers.
C) A selected marker screen identifies transductants for a donor allele of interest.
D) A low co- transduction frequency between two genes is evidence of linkage.
E) A high co- transduction frequency between two genes is evidence of linkage.