"gene cassette" meaning in English

{
  "forms": [
    {
      "form": "gene cassettes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "gene cassette (plural gene cassettes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A DNA sequence which can exist by itself in circular form, or can be integrated into an integron."
      ],
      "id": "en-gene_cassette-en-noun-4ixVCfEI",
      "links": [
        [
          "DNA sequence",
          "DNA sequence"
        ],
        [
          "circular",
          "circular"
        ],
        [
          "integron",
          "integron"
        ]
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "type of DNA sequence",
          "word": "geenikasetti"
        }
      ],
      "wikipedia": [
        "gene cassette"
      ]
    }
  ],
  "word": "gene cassette"
}

{
  "forms": [
    {
      "form": "gene cassettes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "gene cassette (plural gene cassettes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations"
      ],
      "glosses": [
        "A DNA sequence which can exist by itself in circular form, or can be integrated into an integron."
      ],
      "links": [
        [
          "DNA sequence",
          "DNA sequence"
        ],
        [
          "circular",
          "circular"
        ],
        [
          "integron",
          "integron"
        ]
      ],
      "wikipedia": [
        "gene cassette"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "type of DNA sequence",
      "word": "geenikasetti"
    }
  ],
  "word": "gene cassette"
}