In roses, red petals (r) and waxy texture (wx) are encoded by two mutant alleles that are recessive to those that produce wild-type traits; yellow petals (r+) and soft texture (wx+). A rose homozygous for red petals and waxy texture is crossed to a rose homozygous for the wild-type traits. The F1 have yellow petals and soft texture. The F1 are crossed with roses that have red petals and waxy texture in a testcross. The progeny of this testcross are (1000 total):
Yellow petals, soft texture 300
Yellow petals, waxy texture 126
Red petals, soft texture 110
Red petals, waxy texture 464
What is the genetic distance between red petals and waxy texture?
a.57.4
b.76.4
c.23.6
d.30.9
e.42.6
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