Crossing over is often reduced around centrometric regions of chromosomes.If you were trying to construct a genetic map of two linked marker loci in this region, what result might you obtain?
A)The recombination frequencies would be low, and you would deduce that the markers were very close to one another.
B)The recombination frequencies would be low, and you would deduce that the markers were very far from one another.
C)The recombination frequencies would be high, and you would deduce that the markers were very close to one another.
D)The recombination frequencies would be high, and you would deduce that the markers were very far from one another.
E)The recombination frequencies would be too low to detect, and you would not be able to estimate the distance between genetic markers.

Question

Quizplus · Accepted Answer

Crossing over is less frequent near the centromeres, so observed recombination frequencies would be low, suggesting the markers are closer together than they might actually be.

Crossing Over Is Often Reduced Around Centrometric Regions of Chromosomes