In the tomato, three genes are linked on the same chromosome. Tall
is dominant to dwarf, skin that is smooth is dominant to skin that is
peachy, and fruit with a normal rounded tomato shape is dominant
to oblate (flattened) shape. A plant that is true-breeding for the
dominant traits was crossed to a dwarf plant with peachy skin and
oblate fruit. The F1 plants were then testcrossed to dwarf plants with
peachy skin and oblate fruit. The following results were obtained:
151 tall, smooth, normal
33 tall, smooth, oblate
11 tall, peach, oblate
2 tall, peach, normal
155 dwarf, peach, oblate
29 dwarf, peach, normal
12 dwarf, smooth, normal
0 dwarf, smooth, oblate
A) Determine the coefficient of coincidence and the interference for these three loci.
Coefficients of coencidence =0.530
Interference - 0.47
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