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| Description: How the multiple-factor hypothesis accounts for the 1:4:6:4:1 phenotypic ratio of grain color when all alleles designated by an uppercase letter are additive and contribute an equal amount of pigment to the phenotype. P‘ AABB / aabb i X Red White F. AaBb Intermediate color Additive alleles r. 7 1/4 BB — 1/16 AABB #1 4 1/4 AA 77 1/2 Bb — 2/16 AABb fl 3 7 1/4 bb — 1/16 AM!!! 2 7 1/4 53 — 2/16 AaBB ‘ 4" 3 F2 1/2 A5 77 1/2 Bb — 4/16 A55!) 2 — 1/4 bb — 2/16 Aabb 1 7 114 BB — 1/16 aaBB 2 1/4 as 77 1/2 Eb — 2/16 alst 1 7 1/4 bb — 1/16 aabb o l Additive alleles 4 3 2 1 0 F2 ratio 1/16 ’ 4/16 6/16 4/16 1/16 1% Red —> Intermediate colors —> White Picture Stats: Views: 148 Filesize: 80.36kB Height: 1056 Width: 643 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=44115 |