While Doing Fieldwork, You Discover Two New Closely Related Species

question 51

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While doing fieldwork, you discover two new closely related species of oysters. You measure the DNA content per cell of each species and find that the second species has significantly more DNA than the first species. DNA hybridization analysis of both species yields the following results. Based on the graphs shown, suggest an explanation for the difference in C-value between the species.

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Definitions:

Symmetrical

Characterizing a shape or distribution that is evenly balanced around a center point or axis, so that the pattern on one side mirrors the pattern on the other.

Bimodal

Bimodal describes a distribution with two different modes, or peaks, in a frequency distribution chart.

Asymmetrical

Lacking symmetry; not identical on both sides of a central line.

Unimodal

Unimodal refers to a distribution or dataset that has only one mode or peak, representing the most frequent value.