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What process could a what forensic scientist use to analyze a DNA sample from a crime scene to identify a criminal?
A forensic scientist would use a method like PCR (Polymerase Chain Reaction) to amplify the DNA sample, creating more copies for analysis. They would then use DNA sequencing techniques to compare the sample to a suspect's DNA profile or a DNA database to identify a match. This process helps determine the source of the DNA sample and link a suspect to the crime scene.
Can a scientist tell from DNA result alone what type of DNA sample were used in the test i.e. is it from blood or semen sample?
Yes, because each DNA is unique and and the scientist can just match the DNA up with andother DNA.
What forensic scientist is trying to find out the number of adenine in the DNA sample that he obtained from a crime scene. What can he assume about the number of adenine?
The forensic scientist can assume that the number of adenine molecules in the DNA sample is equal to the number of thymine molecules, as adenine always pairs with thymine in DNA. This is known as Chargaff's rule. By determining the number of thymine molecules, the scientist can indirectly infer the number of adenine molecules present in the DNA sample.
What is the method that creates a large sample of DNA for testing from a small sample of DNA?
That would probably be polymerase chain reaction or PCR for short.
When would you need a forensic scientists?
you would need a forensic scientist to test a DNA sample. They help in the process of solving crimes and testifying in court. They usually stay in the lab at the sheriffs department and examine DNA samples. They can also find a person to be innocent from a crime or guilty.
What would the gel DNA sample look like if it wasn't cut into fragments?
If the DNA sample was not cut into fragments before being run on a gel, it would appear as a single band or smear across the gel depending on the size and integrity of the DNA molecules. The band would be thick and continuous, representing the entire intact DNA sample.
A human blood sample would be suitable to carry out a DNA test but a sample of red blood cell would not?
Exactly, because a red blood cell has no nucleus and therefore no DNA
A scientist wants to begin making a DNA fingerprint but she has only a very small DNA sample what should her next step be?
do a polymeras chain reaction (PCR). apex
What scientist studies the human DNA?
geneticists studies genetics so i would think that applies to DNA
A scientist studying humus would most likely examine a sample of what?
Soil
Is anthrax a DNA or RNA?
I am not sure of the answer but I know a scientist who would be glad to answer it!
When DNA profiling is carried out the second DNA sample the one not collected at the crime scene is called the?
mitochondrial sample
