[Campbell Biology P.885] Figure 38.16 illustrates the transformation from teosinte to modern... | Practice Question

Figure 38.16 illustrates the transformation from teosinte to modern maize. Which of the following statements accurately describes a key characteristic of modern maize that resulted from human artificial selection, according to the figure and its accompanying text?

  • A: Modern maize kernels are loose at maturity, allowing for easier natural dispersal.
  • B: Modern maize features larger cob and kernel size, and permanent attachment of seeds to the cob.
  • C: The tough, overlapping leaf sheathes (husk) of modern maize make it easier to harvest.
  • D: Modern maize can now spread its seeds efficiently without human intervention.

Explanation

The text for Figure 38.16 explains that Neolithic farmers selected for 'larger cob and kernel size as well as the permanent attachment of seeds to the cob and the encasing of the entire cob by a tough husk.' This indicates that permanent attachment and larger size are results of artificial selection, contrasting with teosinte's loose, tiny seeds.