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One homozygous fruit variety produces fruit averaging 18g in weight, while anoth

ID: 71058 • Letter: O

Question

One homozygous fruit variety produces fruit averaging 18g in weight, while another homozygous fruit variety produces fruit averaging 8g. The F_1 obtained by crossing these two plants has fruit weight ranging from 11 to 15g . The F_2 produces plants with fruit weight ranging from 8 to 18g. Which generation shows the greatest amount of variation, the F_1 or F_2? How much does each contributing allele add to the mass to the fruit in grams (assume that every allele is equally contributing ie. each allel adds the same mass)?

Explanation / Answer

1. There seems to be 4 gene contributing the mass of fruit.

2. generation F2 shows max variation.

3. one fourth of mass is expected to be influenced by allele.