"counterselection" meaning in English

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  "etymology_text": "From counter- + selection.",
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  "lang_code": "en",
  "pos": "noun",
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      "_dis1": "0 0",
      "word": "counterselectable"
    },
    {
      "_dis1": "0 0",
      "word": "counterselective"
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      "word": "contraselection"
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          "text": "In all recipients, distant drug resistance markers streptomycin (SmR; rpsL104), chloramphenicol (CmR; recA::cat(FRT)), and/or nalidixic acid (NlR; gyrA96) were used for counterselection.",
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      ],
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        "Selection that removes unwanted characteristics."
      ],
      "id": "en-counterselection-en-noun-NJ6tHXyy",
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          "Selection",
          "selection"
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          "unwanted",
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          "name": "English terms prefixed with counter-",
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      ],
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        "Dysgenic selection (that has the opposite effects of natural selection)."
      ],
      "id": "en-counterselection-en-noun-h2RSedWr",
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          "evolutionary theory",
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          "dysgenic"
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        "(evolutionary theory) Dysgenic selection (that has the opposite effects of natural selection)."
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  "word": "counterselection"
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  "etymology_text": "From counter- + selection.",
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  "pos": "noun",
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    {
      "word": "counterselectable"
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    {
      "word": "counterselective"
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          "text": "In all recipients, distant drug resistance markers streptomycin (SmR; rpsL104), chloramphenicol (CmR; recA::cat(FRT)), and/or nalidixic acid (NlR; gyrA96) were used for counterselection.",
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  "word": "counterselection"
}