Question

refer to the table. the relationship between genetic divergence (in sequence divergence) and the extent of reproductive isolation is plotted for three lineages of frogs. reproductive isolation is measured on a scale ranging from zero representing no isolation, to 1 representing complete isolation. % sequence divergence lineage a lineage b lineage c 0.5 0.33 0.05 0.38 1 0.35 0.11 0.52 1.5 0.38 0.15 0.59 2 0.40 0.22 0.64 2.5 0.41 0.26 0.73 what would be the likely amount of reproductive isolation of frogs in lineage b that have diverged by 4 percent in dna sequence based on the observed data? 0.05 0.11 0.22 0.45 0.84

Explanation:

Step1: Observe the trend for Lineage B

As % Sequence divergence increases in Lineage B, the reproductive - isolation value increases.

Step2: Analyze the given data points

For Lineage B, when divergence is 0.5%, reproductive isolation is 0.05; when 1%, it is 0.11; when 1.5%, it is 0.15; when 2%, it is 0.22; when 2.5%, it is 0.26.

Step3: Estimate for 4% divergence

Since the relationship seems to be approximately linear (as divergence increases, isolation increases steadily), and 4% is greater than 2.5%, and the values are increasing, we can see that the value for 4% divergence should be greater than 0.26. Among the options, 0.45 is a reasonable estimate based on the upward - trending pattern.

Answer:

0.45