However, in resting horses, a heart rate over 80 can be a sign of a serious problem. If a calm horse has a pulse that is consistently over 60, it can also be a problem. Things that can increase the horse's heart rate include exercise, fear, pain, stress, and excitement.
Because blood analysis is a comparison analysis (comparison of the victim's blood and the suspect's blood to blood found at the crime scene), reference blood samples are needed from the victim and suspect. A comparison must be made between the genetic markers in the victim s blood and the suspect's blood.
Blood is an excellent source of human DNA. DNA is present in white blood cells of humans, but not red blood cells which lack nuclei.A dime-sized spot of blood, approximately 50 Âµl in volume, is enough DNA for a typical VNTR analysis. DNA from sperm heads is usually the most important source of DNA evidence for sexual assault cases.NA is present in white blood cells of humans, but not red blood cells which lack nuclei. A dime-sized spot of blood, approximately 50 Âµl in volume, is enough DNA for a typical VNTR analysis.