__________occurs when a crossover in one region of a chromosome reduces crossovers in nearby regions.
A)Triple crossover
B)Negative supercoiling
C)Coefficient of coincidence
D)Positive interference
E)Negative interference

Question

Quizplus · Accepted Answer

Positive interference occurs when a crossover in one region of a chromosome increases the likelihood of crossovers in nearby regions. In contrast, negative interference occurs when a crossover in one region of a chromosome reduces crossovers in nearby regions. The coefficient of coincidence measures the degree to which observed double crossovers deviate from the expected frequency. Triple crossover refers to the occurrence of three crossovers in a single meiosis event. Negative supercoiling describes the twisting of DNA in a way that makes it more difficult to separate the strands during replication or transcription.

__________Occurs When a Crossover in One Region of a Chromosome