Why are concept maps a useful tool for organizing information?
why are concept maps a helpful tool for organizing information? They are useful by that it starts from the main idea and helps us separate the next subjects into smaller groups to keep everything organized.
What steps can scientists take to limit contamination as they complete an investigation of crime scene evidence?
Given the types of evidence you have looked at in this activity, what steps can scientists take to limit contamination as they complete an investigation of crime scene evidence? They also should wear gloves so that they don’t contaminate a fingerprint with theirs.
Which search method do you think is most appropriate for the Anna Garcia scene explain your reasoning?
It was determined that the best search method to use was the zone method because the students were working in a house with different zones. Another part of this activity was creating an investigative notes sheet using the information given about the day Anna Garcia died.
How might DNA evidence be used in the case of Anna Garcia explain your reasoning?
how does DNA evidence might be used in the case of Anna Garcia? Knowing Anna’s DNA could help to assist in knowing about her DNA history and hereditary diseases. A component of nucleic acids, energy-carrying molecules such as ATP, and certain coenzymes.
What is wrong with Anna Garcia’s heart?
Anna has a family history of early heart disease as well as uncontrolled hypertension. Her father had a heart attack when he was only 41 years old. Patient was evaluated by physical exam, blood work, cardiac stress test with electrocardiogram (EKG), and an echocardiogram. Results later prompted an angiogram.
Whose DNA was found at the crime scene explain how you came to your conclusion?
Terms in this set (17) Explain how you came to your conclusion. Anna’s DNA was found at the crime scene. This could be concluded because on the Activity 1.2. Restriction enzymes cut the DNA into fragments which then allow the gel electrophoresis to carry them different distances.
What process is used to sort and measure DNA at a crime scene?
To compare the fragments of DNA from different samples to identify if they are from the same person; DNA fingerprinting is the most accurate way of comparing DNA. it can be used in a crime scene where a source of DNA could be found and compared to those of the suspects’.
What is a restriction enzyme and what is its function when performing a DNA profiling experiment?
Restriction enzymes (originally isolated from bacteria) cut double-stranded DNA at particular nucleotide sequences into fragments, usually four, five, or six nucleotides long. A restriction enzyme will cleave the DNA wherever the particular recognition sequence (or restriction site) of the enzyme occurs.
Whose DNA was found at the scene of Anna Garcia’s death?
-Anna Garcia’s DNA was found at the crime scene. Using the Gel Electrophoresis, we found that the DNA from the crime scene matched the DNA of Anna Garcia. Therefore, the DNA from the crime scene had to be Anna Garcia’s.
What was Anna Garcia’s body temperature?
Anna Garcia, a 38-year-old woman, was found dead lying face down in her entry hallway in a pool of blood. It was a comfortable 73’F inside Anna’s house despite it being 92 F outside. She was last seen alive the night before with her former husband, Alex Garcia.
What are three possible sources of DNA from the scene where Anna Garcia’s body was found?
Answer: You could use her vomit or blood to possibly get DNA. Also, the orange juice that was spilled could have saliva in it to get DNA from.
Why is determining the time of death often difficult?
Body temperature typically reaches the temperature of the surrounding environment within 24 hours of death. External factors, such as room or air temperature, exposure to sun, wind, or snow, or the clothes a person is wearing impact this estimate and can make it challenging to pinpoint an exact time of death.
What methods are used to determine time of death?
The classical method of estimating time of death is the rate method, which measures postmortem (after death) stages and the types of transformation a body undergoes such as cooling rates (algor mortis), stiffening (rigor mortis ), initiation and duration, postmortem lividity (discoloration stains), degree of …
How long after death does the body release fluids?
24-72 hours after death — the internal organs decompose. 3-5 days after death — the body starts to bloat and blood-containing foam leaks from the mouth and nose.
What happens to blood after death?
After death the blood generally clots slowly and remains clotted for several days. In some cases, however, fibrin and fibrinogen disappears from blood in a comparatively short time and the blood is found to be fluid and incoagulable soon after death.
Can you bleed if your dead?
For one thing, the dead normally can’t bleed for very long. Livor mortis, when blood settles to the lowest part of the body, begins soon after death, and the blood is “set” within about six hours, says A.J. Scudiere, a forensic scientist and novelist.
What happens just before you die?
The dying person will feel weak and sleep a lot. When death is very near, you might notice some physical changes such as changes in breathing, loss of bladder and bowel control and unconsciousness. It can be emotionally very difficult to watch someone go through these physical changes.
Can you smell death coming?
Smell: the shutting down of the dying person’s system and the changes of the metabolism from the breath and skin and body fluids create a distinctive acetone odour that is similar to the smell of nail polish remover. If a person is dying from bowel or stomach cancer, the smell can sometimes be pungent and unpleasant.
Does your life flash before your eyes when you die?
A life review is a phenomenon widely reported as occurring during near-death experiences, in which a person rapidly sees much or the totality of their life history. It is often referred to by people having experienced this phenomenon as having their life “flash before their eyes”.