The ratios of each color come close to 0.73 and 0.26.
What does the phenotypic ratio mean?
A phenotypic ratio is a quantitative relationship between phenotypes that indicates how often one phenotype's frequency correlates with another phenotype's frequency. Phenotypic ratios obtained from test crosses are used when researchers wish to obtain the generational gene expression of an organism.
Given PP X pp
F1 = Pp (heterozygous purple core) gives
If F1 is self-pollinated, Pp X Pp
given PP Pp Pp pp
The genotype ratio is 1:2:1
The purple core is: heterozygous purple: yellow core
3 will be purple and 1 will be yellow
This is a phenotypic ratio of 0.75 and 0.25.
ROW 1 has 27 purple nuclei and 9 yellow nuclei. It has a nucleus and 12 yellow nuclei. purple and yellow cores, respectively.
ROW 3 has 28 purple nuclei and 7 yellow nuclei, and the ratio of purple to yellow nuclei is 0.8 and 0.2, respectively.
Therefore, the averages of these three series show ratios of purple and yellow cores of 0.73 and 0.26 respectively, which is close to the expected ratio of crosses.
Learn more about the phenotypic ratio from the given link.
https://brainly.com/question/11552649
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