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Description: A Regardless of how a corn seed is oriented in soil, the seedling’s primary root grows down, and its primary shoot grows up. B These seedlings were rotated 90° counterclockwise after they germinated. They adjusted to the change by redistributing auxin, so their direction of growth shifted. C In the presence of auxin transport inhibitors, seedlings do not adjust their direc-tion of growth after a 90° counterclockwise rotation. Mutations in genes that encode auxin transport proteins have the same effect. Picture Stats: Views: 121 Filesize: 378.02kB Height: 764 Width: 1808 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=47781 |