NEET Biology question
In maize, coloured endosperm () is dominant over colourless (), and full endosperm () is dominant over shrunken (). When a dihybrid F1 was test-crossed, it produced four phenotypes in the following percentages: coloured-full 48%, coloured-shrunken 5%, colourless-full 7%, colourless-shrunken 40%. From this data, what is the distance between the two non-allelic genes?
Answer: (D)
Solution
The parental-type classes (48% and 40%) match the original parental gamete combinations, while the recombinant classes are coloured-shrunken (5%) and colourless-full (7%),
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