Need a little help with these question! Question 1 (10 points) You arrive at the

Question

Need a little help with these question!

Question 1 (10 points)

You arrive at the home of a deceased middle aged male who is sitting in a wing back chair in the living room. The room is approximately 12 x 12 with two door entrances and two windows. The wing back chair is positioned along the wall next to one of the windows.   The image is not an accurate representation of the scene; it is provided to assist in the scene

description.

You notice several bloodstains on the wall and ceiling behind the male and the chair. The male appears to have a large wound on the top of his head and the upper portion of his forehead. The bloodstains appear to be in a line as the bloodstains go up the wall and onto the ceiling. There are 4 lines of these particular bloodstains identified on the wall and ceiling. There are a few bloodstains on the floor about a foot from where the male’s feet are positioned. There are a few bloodstains on the opposite wall from where the chair is positioned. The furniture and objects in the room all seem to be in place.

There are no other bloodstains noted within the residence. The residence consists of a single level floor plan with a kitchen, dining room, living room, 2 bedrooms and 1 bathroom.

Describe the type of bloodstain evidence that is present in this scene. What does this type of bloodstain evidence inform you of what may have occurred at this scene. How would you document this room? How would you document, collect, and preserve the bloodstain evidence?

PROVIDE YOUR ANSWER HERE:

Rubric: Question Part

Point Value

Points Given

Describe the type of bloodstain evidence that is present in this scene.

2.5

What does this type of bloodstain evidence inform you of what may have occurred at this scene?

2.5

How would you document this room?

2.5

How would you document, collect, and preserve the bloodstain evidence?

2.5

Question 2 (10 points)

You receive the following exhibit (see photo) in the chemistry section of a crime laboratory. Explain and describe in detail how you would examine this exhibit (be sure to include all steps of the examination). Make sure to include the results of your examination and the schedule of the substance based on the controlled substances act.

PROVIDE YOUR ANSWER HERE:

Rubric: Question Part

Point Value

Points Given

Explain and describe in detail how you would examine this exhibit (be sure to include all steps of the examination).

8

Make sure to include the results of your examination and the schedule of the substance based on the controlled substances act.

2

Question 3 (10 points)

What is deoxyribonucleic acid (DNA)? Who discovered the structure of DNA? Describe the structure of DNA. List the two (2) types of DNA that may be used in forensic analysis. How are these two (2) types of DNA inherited? List one type of sample (evidence or cell) where each of these two (2) types of DNA may be found. Which of these two (2) types of DNA is more discriminating? Why is this particular DNA more discriminating?

List the complementary DNA strand to the following sequence of bases:

3’ A-T-G-C-C-G-A-T-C-C-A-A-T-C-G-A 5’         5'.T-A-C-G-G-C-T-A-G-G-T-T-A-G-C-T 3'

PROVIDE YOUR ANSWER HERE:

Rubric: Question Part

Point Value

Points Given

What is deoxyribonucleic acid (DNA)?

0.75

Who discovered the structure of DNA?

0.75

Describe the structure of DNA.

2

List the two (2) types of DNA that may be used in forensic analysis.

0.75

How are these two (2) types of DNA inherited?

1.5

List one type of sample (evidence or cell) where each of these two (2) types of DNA may be found.

1

Which of these two (2) types of DNA is more discriminating?

0.75

Why is this particular DNA more discriminating?

1.5

List the complementary DNA strand…

1

Question 4 (10 points)

The following address was written three (3) times by the same author. The address was written in consecutive order (one after the other with no specific time between the writings). Examine the three (3) addresses and describe in detail the variation in the handwriting. What causes a person not to write the same each and every time? What causes variations in a person’s handwriting?

PROVIDE YOUR ANSWER HERE:

Rubric: Question Part

Point Value

Points Given

Examine the three (3) addresses and describe in detail the variation in the handwriting.

5

What causes a person not to write the same each and every time?

2.5

What causes variations in a person’s handwriting?

2.5

Rubric: Question Part

Point Value

Points Given

Describe the type of bloodstain evidence that is present in this scene.

2.5

What does this type of bloodstain evidence inform you of what may have occurred at this scene?

2.5

How would you document this room?

2.5

How would you document, collect, and preserve the bloodstain evidence?

2.5

Explanation / Answer

Answer 3.

What is deoxyribonucleic acid (DNA)?

DNA is the hereditary material in humans and almost all other organisms.

Who discovered the structure of DNA?

James Watson and Francis Crick showed that DNA is double helical in structure.

Describe the structure of DNA.

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. Complementary binding of nucleotides confer double helical structure of DNA.

List the two (2) types of DNA that may be used in forensic analysis.

Mitochondrial DNA and nuclear DNA

Kindly ask remaining questions as separate post!!!

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