Forensics science

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1- Biological Evidence Paper

Resources: Ch. 13 & 15 of Forensic Science

Write a 1,050- to 1,750-word paper that examines biological evidence obtained at the crime scene. Address the following in your paper:

  • Describe the biological evidence obtained at the crime scene.
  • Identify the preservation and collection of the various types of biological evidence.

Format your paper consistent with APA guidelines. Remember to cite and list your source material. Save your paper with your name and assignment as part of the document's file name. Such as JohnDoeBiologicalEvidence.doc or JaneDoeassignment2.docx

2- DNA Evidence PowerPoint Presentation 

Resource: Ch. 15 of Forensic Science

Create a 5- to 16-slide Microsoft® PowerPoint® presentation with speaker notes on DNA evidence. Include the following in your presentation: 

  • Describe the structure and genetic properties of DNA.
  • Outline the DNA typing techniques.
  • Identify the methods used to test DNA.
  • Describe the collection process of DNA evidence.

Include information learned this week from the MyCrimeKit Virtual Lab activities in your presentation.

Format your presentation consistent with APA guidelines. Save your presentation with your name and assignment as part of the document's file name. Such as JohnDoeDNAPresentation.ppt or JaneDoeassignment2presentation.ppt

There are two assignments to be specific, the second one needs to be a powerpoint presentation.

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Explanation & Answer

Here you go! Let me know if you need any edits or have any
questions.

Presented By: Student Name
Presented To: Professor Name
Subject:
Date: 4th October,2016



DNA is defined as “the genetic material of all
living things on the planet.



DNA is a polymer molecule with four types of
basic chemicals. These are called the
deoxyribonucleotides



It is found in the nucleus of your cells.



DNA holds the instructions to make all things in
your body work properly”.



DNA has three main components
◦ 1. Deoxyribose (a pentose sugar)
◦ 2. base (there are four different ones)
◦ 3. phosphate
Four Types of Chemical
1.
2.
3.
4.

in DNA

Adenine (A)
Cytosine (C)
Guanine (G)
Thymine (T)

Base
Phosphate

Sugar
X=H: DNA
X=OH: RNA

Nucleoside
Nucleotide
Biochemistry for Medics

4



DNA or deoxyribonucleic acid is a helically
twisted double chain polydeoxyribonucleotide
macromolecule which constitutes the genetic
material of all organisms with the exception of
rhinoviruses.



The primary Structure



The Secondary Structure

The primary structure of
DNA is the sequence
5’ end

Phosphodiester
linkage

3’ end

1.

2.

3.

4.

The secondary structure of DNA is
the double helix
Two anti-parallel polynucleotide
chains wound around the same axis.
Sugar-phosphate chains wrap around
the periphery.
Bases (A, T, C and G) occupy the
core, forming complementary A ·T
and G · C Watson-Crick base pairs.



The Properties of DNA are …

1.

DNA Grooves

2.

Conformations of DNA

3.

DNA Super coiling

4.

DNA Sense and Antisense

5.

Base Pairing

6.

Physical Properties

1.

DNA typing is defined as the methods use to
study the genetic Variations. (DNA Forensic)

2.

Each DNA typing method involves three steps
variations.
a. Laboratory Analysis
b. Comparison of the genetic-marker types
c. Statistical analysis of the population frequency

1.

RFLP - Restriction Fragment Length Polymorphism

2.

PCR - Polymerase Chain Reaction

3.

STR - Short Tandem Repeats

4.

Mitochondrial DNA Analysis

5.

Rapid DNA ID Microchip-Bas...


Anonymous
Just what I needed…Fantastic!

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