Terms in this set (24)
T/F DNA stands for deoxyribonucleic acid
DNA contains ____________
Where is DNA found?
chromosomes located in the nucleus of our cells
What is the backbone of the DNA made up of?
sugar (deoxyribose) and phosphate molecules
What are the rungs that form the middle of the molecule made up of?
pairs of nucleotides or nitrogen bases
What does Adenine pair with?
What does Guanine pair with?
What determines the genetic code? the order of the bases
T/F Each person's DNA is different from other people
True (except identical twins)
How is DNA collected at the crime scene important?
it can link a suspect to the evidence or eliminate a suspect, similar to the use of fingerprints
If a body is not found, how can DNA identify a victim?
through DNA from relatives.
How can DNA link crime scenes together?
by linking the same perpetrator to different scenes locally, statewide, and across the nation
T/F DNA can NOT place an individual at a crime scene, in a home, or in a room where the suspect claimed not to have been
DNA can ____________ _____ __________ ____ ________________________ and put a weapon in the suspect's hand
refute a claim of self-defense
What are some factors that can affect the DNA left at the crime scene?
environmental factors (heat, sunlight, moisture, bacteria, and mold)
T/F DNA testing can identify when the suspect was at the crime scene or for how long
What does CODIS stand for?
COmbined DNA Index System
an electronic database of DNA profiles that can identify suspects
DNA profiles from individuals convicted of certain crimes (rape, murder, child abuse) are entered into ___________
T/F The DNA in a man's blood is the same as the DNA in his skin cells and saliva
T/F Each person's DNA is different from every other individual's
T/F DNA can be found in all the cells in our bodies except the blood cells
T/F DNA can have forensic value even if it is decades old
T/F DNA evidence was first used to get a conviction in a trial in 1987
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