"expresión genética" meaning in Spanish

{
  "forms": [
    {
      "form": "expresiones genéticas",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "expresión genética f (plural expresiones genéticas)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "gene expression"
      ],
      "id": "en-expresión_genética-es-noun-klSemLQI",
      "links": [
        [
          "gene expression",
          "gene expression"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "expresión genética"
}

{
  "forms": [
    {
      "form": "expresiones genéticas",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "expresión genética f (plural expresiones genéticas)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Spanish countable nouns",
        "Spanish entries with incorrect language header",
        "Spanish feminine nouns",
        "Spanish lemmas",
        "Spanish multiword terms",
        "Spanish nouns",
        "Spanish nouns with red links in their headword lines"
      ],
      "glosses": [
        "gene expression"
      ],
      "links": [
        [
          "gene expression",
          "gene expression"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "expresión genética"
}