1 Researchers Cross A Corn Plant That Is Pure Breeding For The Dominant Traits Colored Aleurone C1 Full Kernel Sh 1 (36.81 KiB) Viewed 14 times
1 Researchers Cross A Corn Plant That Is Pure Breeding For The Dominant Traits Colored Aleurone C1 Full Kernel Sh 2 (26.97 KiB) Viewed 14 times
1. Researchers cross a corn plant that is pure-breeding for the dominant traits colored aleurone (C1), full kernel (Sh), and waxy endosperm (Wx) to a pure-breeding plant with the recessive traits colorless aleurone (c1), shrunken kernel (sh), and starchy endosperm (wx). The resulting F1 plants were crossed to pure-breeding colorless, shrunken, starchy plants. Counting the kernels (offspring) from about 30 ears of corn yields the following data: Kernel Phenotype Colored, shrunken, starchy Colored, full, starchy Colored, full, waxy Colored, shrunken, waxy Colorless, shrunken, starchy Colorless, full, starchy Colorless, full, waxy Colorless, shrunken, waxy Number 116 601 2538 4 2708 2 113 626 6708 a. Which of these offspring are considered parental? How do you know? b. Which gene is in the middle? How can you tell? c. Calculate the recombination frequencies between the gene pairs (for SCO-1 and SCO-2). Make sure you identify which gene pair (ex: Sh-Wx or Sh-C1, etc) you are referring to in each case.
b. Which gene is in the middle? How can you tell? c. Calculate the recombination frequencies between the gene pairs (for SCO-1 and identify which gene pair (ex: Sh-Wx or Sh-C1, etc) you are referring to in each case e. What is the interference value for this data set?
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