In Order to Use Tetrad Analysis in an Organism to Map

Multiple Choice

In order to use tetrad analysis in an organism to map the distance between a gene and the centromere on a chromosome,

A) the organism may produce either ordered or unordered tetrads.
B) the organism must produce unordered tetrads.
C) the parental centromeres must be distinguishable.
D) the chromosome must have a cytological marker.
E) the organism must produce ordered tetrads.