Question

According to the accompanying figure, we can conclude that ________.

1) the rate of decline in disequilibrium occurs more quickly with a lower rate of recombination

2) the rate of decline in disequilibrium occurs more slowly with a lower rate of recombination

3) the rate of decline in linkage disequilibrium is inversely proportional to the rate of recombination between them

4) None of these is an accurate statement.

Answer 1

The rate of decline in linkage disequilibrium occurs more slowly with a lower rate of recombination, based on how alleles are less likely to be reshuffled at lower recombination rates, maintaining their non-random association for longer periods.

Step-by-step explanation:

Based on the information provided, we can conclude that the rate of decline in linkage disequilibrium occurs more slowly with a lower rate of recombination. Linkage disequilibrium measures the non-random association of alleles at different loci. When there is a lower rate of recombination, alleles are less likely to be reshuffled, therefore, maintaining linkage disequilibrium for longer periods. Conversely, higher recombination rates break up this association more quickly, leading to a faster decline in linkage disequilibrium. Sturtevant's representation of linear maps of alleles indicates that perfectly linked genes have a recombination frequency of 0, while a frequency of 0.5 corresponds to independent assortment with equal recombination and parental types in offspring.