DNA in Forensics 2025

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Across
  1. 3. Abbreviated as DNA. Found inside the nucleus of Eukaryotic cells and acts as the blueprint for all life forms/organisms
  2. 5. The false accusation of a man of being the biological father of a child for government financial assistance; committed by the mother
  3. 6. The part of a nucleotide that determines the name/type of nucleotide. This determines the sequence of DNA
  4. 8. The two strands of DNA travel in opposite directions. All DNA and RNA are connected in the 5’ to 3’ direction
  5. 9. When an individual has different alleles for a trait
  6. 10. The building blocks of DNA: Adenine, Guanine, Cytosine, and Thymine
  7. 12. Proteins found in the plasma region of blood that tracks down foreign invaders and forms a clot
  8. 15. Obtaining the sequence/code from the DNA recovered from the crime scene evidence to make a match
  9. 19. Short for polymerase chain reaction. The process of making small quantities of DNA or broken pieces of DNA found at a crime scene, outside a living cell. Also used to match sequences of DNA between genetic evidence and victims/suspects
  10. 20. A version of a trait. Each parent donates one to their child for every trait: blue eyes, brown eyes, green eyes, etc..
  11. 22. Used to resolve paternity fraud. Comparing the DNA of a child to their Alleged Father for confirmation of paternity
  12. 23. Adenine pairs with Thymine and Guanine pairs with Cytosine in DNA
  13. 26. Used to cut open DNA
  14. 27. A technology that converts the gel containing bands of separated DNA Genes into a photographic film to store as evidence
Down
  1. 1. Weak bonds that hold nucleotides on opposite strands together; two of them hold Adenine and Thymine together while 3 of them hold Guanine and Cytosine together
  2. 2. Unique DNA found in the mitochondria. This DNA is identical between a mother and her offspring
  3. 4. The organelle that contains and protects the DNA/Genes
  4. 7. A technology used to separate different genetic sequences based on size using electricity. Different genes are separated into bands of different thicknesses
  5. 11. Calculating how much DNA is in the evidence recovered from a crime scene
  6. 13. A diagram that shows bands of separated genetic markers inside of a cut region of DNA. Used to match DNA from a crime scene to DNA of potential suspects
  7. 14. The two alleles that a person has for a trait. They can be homozygous dominant, heterozygous, or homozygous recessive
  8. 16. Abbreviation for short tandem repeats. Unique repetitions of DNA. Used to match DNA from crime scene to a suspect or victim. Can also be used to make matches of a person’s DNA to their biological parents/family members. Used in Paternity Tests and DNA Fingerprinting
  9. 17. The region of DNA that codes for a trait/protein. The functional part of DNA. A very small portion of the total DNA found in a person
  10. 18. When an individual has two of the same alleles for a trait
  11. 21. Removing DNA from the evidence recovered from a crime scene
  12. 24. Making additional copies of the DNA recovered from crime scene evidence
  13. 25. Surface proteins on cells and viruses