Can trace DNA be burned off a hard suface?
from my knowledge, it can be used in DNA testing in order to identify a suspect, it can be used to trace a person using this DNA, and can provide hard edvidence showing that someone was at the place of the blood, unless someone just had their transfusion lol, it can be used to do some other stuff but those are the main bits, in my opinion.
A very small amount of DNA (eg. from blood) is enough for DNA fingerprinting because of the use of amplification techniques. Polymerase Chain Reaction (PCR) is an amplification technique that is commonly used for this purpose. It can begin with a very small amount of DNA and make copies of this - resulting in enough DNA to run multiple tests.
I do not think so. His body was burned and I do not think it was recovered. ___ Though it's true his body was burned, it was not completely cremated, and the Soviets took his (and Eva Braun's) remains and buried them in Brandenburg, Germany. About 30 years later, they were disinterred, thoroughly cremated, and the ashes were scattered in the Elbe River. In short, the Soviets could've recovered a DNA sample from him before…
So far as we currently understand, our DNA doesn't change from one thing to another. DNA however, can be simply explained as having "switches" that can turn it "on" or "off". In this way, some may explain DNA as having changed, however, it really doesn't change any more than a car changes when you turn the key. Mitochondrial DNA is so constant, it is used to tell where a person's ancient ancestors came from thousands…
Yes, but mitichondrial DNA is passed directly from the mother, because sperm contain very few organelles to make them more streamlined and likelier to reach the egg, so the mitchondria only resides in the cytoplasm of the egg, making everyone's mitochondrial DNA an exact copy of their mothers. Mitochondrial DNA typical resides longer in bones, making it easier to trace through history.
What are the functions of the loading dye in electrophoresis how can DNA be prepared for visualization?
The DNA undergoes a process named PCR (Polymer Chain Reaction) once the scientists get a hold of the DNA. essentially the DNA double helix is unwound and is split into its two strands, and random nucleotides (or primers as they are called in this process) attach to the two open strands. These primers form hydrogen bonds with the DNA strands. due to this, there are now two strands of DNA rather than just one. scientists…
Anything a scientist can get their hands on to test are of interest and value to the scientist as well as the human race which gains information. The operative word 'trace' means that DNA can be extracted from this fossil, most fossils are long dried up and the elements have been absorbed back into the environment, and just an impression is left. With trace fossils there is some sort of tissues left. ya your right
Yes. There are several methods including a procedure called amniocentesis in which a needle is inserted into the uterus and a small amount of the amniotic fluid is collected for testing. Recently scientists have discovered a trace presence of the baby's DNA in the mother's own blood stream which can be isolated and tested.