Component of some modern vaccines WSJ Crossword Clue

By Narcissa Kh /

Crossword Answer

1 ? R
2 ? N
3 ? A
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Interactive Solver for Component of some modern vaccines Crossword Clue

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      Hint 1

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      Think of the messenger that delivers a crucial genetic instruction.

      Hint 2

      meaning
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      ??? is a nucleic acid present in all living cells, primarily involved in the synthesis of proteins.

      Hint 3

      explanation
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      The clue refers to the technology used in some contemporary vaccines, specifically mRNA vaccines like those for COVID-19. ???, or ribonucleic acid, is a crucial component in these vaccines, which use a piece of genetic code to instruct cells to produce a protein that triggers an immune response.

      Hint 4

      another clue
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      Messenger molecule in bio class, Molecule with the nucleotides G, U, A and C, Modern vaccine component, Genetic info carrier, Basis of some vaccines

      Clue Analysis

      The clue “Component of some modern vaccines” is a classic crossword staple, frequently appearing in puzzles like the WSJ crossword. For the puzzle dated September 20 2025, the definitive 3-letter answer is: RNA.

      Expert Tip: When you’re stuck, try to analyze the structure of the clue itself. Is it a direct definition, a pun, a fill-in-the-blank, or a pop culture reference? Identifying the type of clue you’re dealing with is a key skill for improving your solving speed.

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      Component of some modern vaccines Crossword Clue