2200
Since nearly all transformants involving homeologous DNAs carried a single recombinant plasmid in both Pms + and Pms - strains , stable heteroduplex DNA appears less likely than for homologous DNAs .
 GENE: Pms +; GENE: Pms -
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: Pms +; GENE: Pms -