Genetics & DNA Crossword Puzzles: Free Printable and Online

Explore the building blocks of life with our Genetics & DNA crossword puzzles on Grid Genius, featuring clues on heredity and genes.

Print any genetics & dna crossword below, download it as a PDF, or play it online. Free, and no signup is needed to play.

3 puzzles, click Print on any puzzle below

Genetics & DNA

Hard · 15×15 · 20 words
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Across

  1. 2. The fraying plastic tip on the shoelace of life
  2. 6. The result of crossing lines to find a middle ground
  3. 7. A clerical error that drives the engine of change
  4. 10. A triplet of letters that dictates an arrival
  5. 11. A biological echo of an existing original
  6. 13. Above the script, determining which lines are actually spoken
  7. 16. Vigor found only when the parents are opposites
  8. 17. A major base that pairs with a cross-shaped letter
  9. 18. A short necessary start for a long replication story
  10. 19. The expressed survivor of the splicing room floor
  11. 20. The alpha character that masks its partner presence

Down

  1. 1. A photographic lineup of the cellular suspects
  2. 3. A chemical gag that keeps certain expressions quiet
  3. 4. The complete library where every shelf is a chromosome
  4. 5. The singular union of a zero and a one
  5. 8. The process of copying the master file into a portable format
  6. 9. The monomeric currency spent to build a double helix
  7. 12. The enzymatic zipper that pulls apart the spiral
  8. 14. Molecular scissors that sound like they belong in a salad drawer
  9. 15. One of several versions found at the same neighborhood locus

Genetics & DNA

Medium · 11×11 · 12 words
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Printing for a class?

Print 2 or 4 versions of this puzzle with different grid layouts, so desk neighbors cannot copy answers. Same words and clues, and each version has its own answer key. Class sets are a Plus feature in the Grid Genius app.

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Across

  1. 1. Modern tool used for precise genomic editing
  2. 7. The version of a gene that masks its partner
  3. 9. Coding sequence that remains after splicing
  4. 10. The final product of the central dogma
  5. 11. The monk who studied pea plants to unlock heredity

Down

  1. 1. Three-letter sequence that specifies an amino acid
  2. 2. Small circular DNA strand often found in bacteria
  3. 3. Observables like eye color or height
  4. 4. Cellular machinery that builds proteins from code
  5. 5. Non-coding segment discarded during RNA processing
  6. 6. Having a single set of unpaired chromosomes
  7. 8. The geometric spiral that defines our structure

Genetics & DNA

Easy · 7×7 · 8 words
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Printing for a class?

Print 2 or 4 versions of this puzzle with different grid layouts, so desk neighbors cannot copy answers. Same words and clues, and each version has its own answer key. Class sets are a Plus feature in the Grid Genius app.

Make a class set →
1
2
3
4
5
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Across

  1. 3. The A in the acronym DNA
  2. 6. The basic unit of life where DNA is found
  3. 7. A single unit of heredity

Down

  1. 1. A diagram showing the location of genes
  2. 2. The physical height or scale of an organism
  3. 4. A common eye color determined by genetics
  4. 5. A chemical building block like adenine
  5. 6. The set of instructions in a genome

Make your own Genetics & DNA crossword

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Related Printable Crossword Topics

Genetics & DNA Crossword FAQ

Is this Genetics & DNA crossword puzzle free?

Yes. Every Genetics & DNA crossword on this page is free. You can print it, download it as a PDF, or play it online without paying anything or creating an account.

Can I print the Genetics & DNA crossword?

Yes. Click Print on any puzzle for a print-ready page with the grid, the clues, and a name and date line, or use Download to save it as a PDF, PNG, or JPEG for photocopying. The PDF download includes a filled answer key on the last page for grading.

Can students play these crosswords online?

Yes. Every puzzle has a Play online link that opens in the browser on any device. No app install and no signup is needed to play, which makes it easy to share with a class.

Can I make my own Genetics & DNA crossword?

Yes. The free Grid Genius crossword maker builds a puzzle from your own words and clues, with a printable grid and answer key. The Grid Genius app can also generate a complete crossword from any topic you type.