Which biological consequence occurred when maize was cultivated at high altitudes in pre-Columbian Andes?

💡 Explanation

When maize was cultivated at high altitudes, genetic drift occurred because the environmental pressures (UV radiation, lower temperatures) favored varieties with larger kernels suited to shorter growing seasons, ensuring better seedling vigor. Therefore selection for larger kernels results, rather than blight susceptibility, reduced lignin, or enhanced fixation which are consequences of different selection pressures.

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