 |
| Previous Image | Next Image |
| Description: The phenotypic and genotypic ratios of a dihybrid cross can be derived using a branched-line method instead of a Punnett square. F2 Genotypic ratio 1/4 yy —> 1/16 SSYY 1/4 55 < 2/4 yy —>2/16 SSYy 1/4 yy —> 1/16 SSyy 1/4 YY —> 2/16 SsYY Sst Sst 2/4 55 < 2/4 Yy —> 4/16 Sst 1/4 yy —> 2/16 Ssyy 1/4 yy—> 1/16SSYY 1/4 55 < 2/4 Yy —>2/16 sst 1/4 yy —> 1/16 ssyy F2 Phenotypic ratio 3/4 Y —>9/16 Smooth Yellow 3/4 S < 1/4 y —>3/16 Smooth green SSYy Sst 3/4 Y —>3/16 wrinkled Yellow 1/4 5 < 1/4 y —>1/16 wrinkled green enengege Lear/Mg. All Rrghls Reserved. Picture Stats: Views: 362 Filesize: 228.28kB Height: 1500 Width: 1430 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=44091 |