DNA profiling Flashcards
A single drop of blood found at a crime scene could
contain
contain the genetic profile of the person it came from.
DNA can also be found in
the roots of hair that has
been pulled out in a fight or in skin samples found
under fingernails that have scratched a victim or
perpetrator.
If a suspect has been found, what happesn
their DNA can be
directly compared to that found at the crime scene.
DNA not only identifies criminals, but has been used
in recent years to prove
the innocence of some
prisoners.
laboratory.
where samples of blood, body fluids or skin that are collected
from the crime scene are taken
The pieces of DNA from different samples are
lined up
across a jelly-like substance.
When electricity is passed through the DNA sample,
the pieces
of DNA spread across the jelly-like substance. As the
pieces spread, they form a pattern on the autograph.
How to solve a crime if the suspect has not been identifed
, evidence is analyzed then compared to that of the DNA profiles of perpetrators on the criminal database
How is an autograph of DNA formed
electricity is passed through the sample, the pieces
of DNA spread across the jelly-like substance. As the
pieces spread, they form a pattern on the autograph.
post mortem
medical examination of a body after death.
. Describe the purpose of a postmortem.
determine the cause of death.
what kind of forenisc position can provide the judgedvice on the defendants or victims mental health
forensic psychologist or forensic psychiatrist
Order that the test for comapring 2 different fibres would be carried out in
optical test
microscopic test
density test
burning test
solubility test
optical test
using a magnifying glass to examine the fibres
microscopic test
when the fibres are examined through a microscope
