12. One homozygous fruit variety produces fruit averaging 18g in weight, while a
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12. One homozygous fruit variety produces fruit averaging 18g in weight, while another homozygous fruit variety produces fruit averaging 8g. The F? obtained by crossing these two plants have fruit weight ranging from 11 to 15g (shown below). The F2 produces plants with fruit weight ranging from 8 to 18g. Fruit Weight in grams (g) Number of Fi Individuals F2 8 9 10 11 12 13 14 15 16 17 18 4 141612 6 120 9 131714 7431 a. How many genes likely contribute to fruit weight in this species? b. Which generation shows the greatest amount of variation, the Fi or F2? c. How much does each contributing allele add to the mass of the fruit in grams (assume that every allele is equally contributing ie. each allele adds the same mass)?Explanation / Answer
a. In this species Five genes contribute to fruit weight.
b. F2 generation shows the greatest amount of variation.
c. Each allele contributing 2 grams mass of the fruit.
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