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| Description: In this drawing of four-o'clock egg cells, normal proplastids are represented as green and mutant proplastids as white. Proplastids do not differentiate into chloroplasts in egg cells, and they are not actually green. (a) A green plant produces eggs carrying normal proplastids. (b) A white plant produces eggs carrying mutant proplastids. (c) A variegated plant produces eggs that can contain either or both types of proplastids.
Picture Stats: Views: 3379 Filesize: 110.88kB Height: 953 Width: 850 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=537 Keywords: Plastid composition of egg cells from green, white, and variegated four-o'clock plants. |