The data in the following table were obtained from three-point transduction tests made to determine the order of mutant sites in the A gene encoding the a subunit of tryptophan synthetase in E. coli. Anth is a linked, unselected marker. In each cross, trp⁺recombinants were selected and then scored for the anth marker (anth⁺or anth-). What is the linear order of anth and the three mutant alleles of the A gene indicated by the data in the table?

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Recipient anth Allele in trp* Cross Markers Markers Recombinants Donor % anth+ 18 anth-- A223 72 anth*: 332 anth- anth*- A34 52 anth*– A46 anth-- 196 anth*: 180 A223 anth- 50 3 380 anth*: 379 anth*- anth- A223 A34 anth- 20 60 anth*: 280 anth 4 anth*- anth - A223 A46 2.