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.

Question

Quizplus · Accepted Answer

Tetrad analysis for mapping gene-centromere distance requires ordered tetrads, as the sequence of spores reflects the sequence of meiotic divisions, allowing for the determination of centromere linkage.

In Order to Use Tetrad Analysis in an Organism to Map