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Why was it difficult to use DNA as evidence in a crime pcr was invented?
you need many copies of DNA for DNA fingerprinting
Biochemical analysts use similarities in what as evidence for evolutionary relationships?
Biochemical analysts use similarities in molecules like DNA, proteins, and enzymes as evidence for evolutionary relationships. The more similarities there are between the molecules of different organisms, the closer their evolutionary relationship is believed to be.
How do scientist use DNA to determine the origin of today's American dogs?
The scientists take the DNA to the lab to determine the origin of some of the modern American dogs.
Do you think DNA fingerprinting is good evidence for solving crimes. why or why not?
Yes, DNA fingerprinting is a powerful tool for solving crimes because it can definitively link a suspect to a crime scene or victim. DNA evidence is scientifically reliable and has high accuracy, which can help prosecutors secure convictions or help exonerate innocent suspects. However, it is important to consider the chain of custody and proper handling of DNA samples to ensure the integrity of the evidence.
Are there any downsides to DNA evidence?
There are a few downsides to DNA evidence: It has been suggested that the prominence of DNA evidence on TV shows has caused juries to expect irrefutable DNA evidence before convicting someone. This may be a problem if other forms of evidence are ignored. DNA evidence can only be obtained in instances where biological substances are left behind or exchanged. This only occurs in a minority of cases. DNA evidence sometimes only proves that the person was present at the scene - it does not always prove guilt. However, if a person's DNA is found at the scene, this may be perceived as proof that they committed the crime.
Why was it difficult to use DNA as evidence in a crime pcr was invented?
you need many copies of DNA for DNA fingerprinting
Why was it difficult to use DNA as evidence in a crime before PCR was inventes?
you need many copies of DNA for DNA fingerprinting
Why was it difficult to use DNA as evidence in a crime before PCR was invented?
you need many copies of DNA for DNA fingerprinting
How DNA use in real life?
DNA has many uses in real life. These uses may include use as evidence in a crime scene for example
How reliable is DNA fingerprinting?
It is not infallable, but it is considered reliable enough to be use as evidence.
What commission was formed in 1998 to ensure the effective use of DNA as a crime fighting tool?
National Commission on the Future of DNA Evidence
How is DNA use as Evidence?
They compare the DNA of those found at the scene of the crime against any suspect. This can be achieved by using Electrophoresis.
What are the arguments for and against DNA evidence?
There are many arguments for and against DNA evidence. One argument is that it cannot be disproved as deciding evidence.
What are three things forensic scientists use DNA fingerprinting for?
iDENTIFING RELATIONSHIPS, CORSPES, EVIDENCE.
Why is it difficult to use DNA as evidence in a crime before PCR was invented?
Before PCR was invented, it was difficult to use DNA as evidence in a crime because traditional methods required a large amount of DNA sample, which may not have been available or may have been contaminated. This made it challenging to obtain reliable DNA profiles for comparison. Additionally, the older techniques were more time-consuming and less sensitive than PCR, making the process of analyzing DNA evidence slower and less accurate.
How do forensic scientists use DNA?
Forensic scientists use DNA analysis to identify individuals, solve crimes, and establish paternity. They compare DNA samples from crime scenes or suspects with samples from victims or relatives to make matches and draw conclusions about the evidence. DNA can provide crucial evidence in criminal investigations by linking individuals to crimes through biological material such as blood, saliva, or hair.
Why do investigators use DNA instead of other physical evidence?
Because DNA is unique to each person so it can be used to kinda say they were definatly involvd cos it couldn't be anyone else's DNA
