DNA fragmentation is the separation or breaking of DNA strands into pieces. Why is it important to identify different DNA fragments in DNA profiling? You and your team have taken a magnifying glass to look at the evidence so that you can compare it to the DNA of the 4 suspects. Which suspect do you think committed the crime based on the results from the gel electrophoresis? Use evidence from the diagram and what you know about the process to justify your response. How is the evidence from earlier years vs. evidence used now changed? Evidence DNA Suspect #1 Suspect #2 Victim Officer

Q: Which of the following suspects does the crime scene DNA match? O a suspect #1 suspect #2 suspect #3…

A: DNA profiling DNA profiling is a DNA based technique that determines the DNA and its sequence and…

Q: Why can a DNA sample not be a reliable source of evidence?

A: With advancement in biotechnology and rDNA technology, many things have got discovered and proved to…

Q: In the given below option which of the following are considered as the main tools for DNA…

A: DNA technology alters the phenotype of the organism through a genetically altered vector.  It…

Q: In this activity you will extract DNA from living material. Before you begin, here are some helpful…

A: DNA (deoxyribonucleic acid) extraction is the process in which DNA of the given living organism or…

Q: whats is the function of the following chemicals in DNA extraction ; salt solution , soap solution…

A: DNA is the genetic material that is present within the nucleus of the cell. It is a double-stranded…

Q: Use the figure of the gel below to answer the following questions. Controls 1 2 3 Experimentals 4 5…

A: Gel electrophoresis is a technique used to separate DNA fragments,( or may be RNA and protein) based…

Q: When you collect your cheek cells and prepare the DNA, which of the following would represent a kind…

A: DNA (deoxyribonucleic acid) is the genetic material of organisms. It is found in the nucleus of the…

Q: When you use the centrifuge the second time with the alcohol, where does the DNA go?

A: The type of nucleic acid known as DNA (Deoxy Ribo Nucleic Acid) controls the growth, metabolism, and…

Q: Put a primer on the top and bottom of bubble at origin. Identify 3’ ends. You can use a thicker line…

A: For DNA replication to occur, following steps take place -

Q: 1 Collect evidence from the crime scene

A: Gel electrophoresis is the technique of separation of molecules on the basis of their size and…

Q: PCR analysis of your sample did not work can you suggest why? How can you test if this is true?

A: PCR  stands for polymerase chain reaction    *PCR is nowdays used often in  hospitals and large…

Q: Please compare and contrast these three OR make table: 1.qPCR 2. RT-PCR 3. PCR

A: Polymerase chain reaction (PCR) is a scientific instrument that can be used to make a large number…

Q: When you added the ethanol during the DNA extraction, you added it gently to the test tube. What…

A: DNA extraction using ethanol is one of most commonly used method to extract DNA from the cell by the…

Q: Place the following steps of PCR in order. Annealing - cooling allows short complementary primers to…

A: PCR is a strong tool that is used in biotechnology. Here a small piece of DNA is amplified into…

Q: What does the term forensic science mean? 2. Describe in detail one example of a forensic…

A: A crime scene is littered with various materials that can be collected as evidence. Such pieces of…

Q: Electrophoresis works on the premise that different size DNA fragments?

A: Electrophoresis is a most widely used technique in biochemistry and molecular biology. This…

Q: a.What is the importance of centrifugation in step 3?  b.

A: Introduction: For the development of diagnostics and medications as well as for research into the…

Q: Give summary about the "The Pitchfork Case: The First Criminal Conviction Using DNA Profiling" ?

A: DNA profiling or DNA fingerprinting has great application in solving forensic cases. It is studied…

Q: Should DNA phenotyping be used to identify or convict a suspect?

A: The DNA (deoxyribonucleic acid) is the hereditary unit of an organism. It consists of a specific…

Q: The technique that Rosalind Franklin used to take images of DNA is called NMR. O a. False O b. True

A: Nucleic acids are polynucleotides that contain many nucleotides that are bound by phosphodiester…

Q: What should you do when loading the DNA sample into the gel well? A. Ensuring that the DNA samples…

A: Gel electrophoresis is a technique used in the biotechnology lab to separate the DNA fragments…

Q: If someone extracted your DNA should they be able to use it without your consent?

A: Generally , DNA samples are considered to be more effective at solving crimes than fringerprints .

Q: Quantitative PCR (qPCR) has one extra ingredient to quantify DNA. Describe its structure and explain…

A: A method for locating, identifying, and quantifying nucleic acids in a variety of conditions is…

Q: 1. What are some reasons to do PCR? 2. Why do we use a special DNA polymerase from thermophilic…

A: Dear student, as per the honour code, we are allowed to answer only one question at a time. Please…

Q: DNA evidence first used in US courts....       Between 1980 and 1985   Between 1985 and 1990…

A: DNA evidence means the use of DNA fingerprinting techniques for the identification of guilty among…

Q: DNA profiling identifies a person by the similar parts of his or her DNA True Fals

A: DNA profiling The application of the molecular biology is largely dependent on its application in…

Q: Could actual fingerprints taken from human fingers be used toperform a DNA profile? Explain.

A: DNA can be obtained from a variety of bodily sources, such as hair (with dead skin stuck to it),…

Q: HEADGEAR PHYSICAL DESCRIPTION OF PERPETRATORS PERPETRATOR A. Stocking Cap 1. B. Cowboy Hat C.…

A: The document you provided appears to be a form for recording observations about potential…

Q: Cellular DNA replication uses the enzymes for the process while PCR uses thermal denaturation that…

A: DNA replication is the biological process of delivering two indistinguishable imitations of DNA from…

Q: Explain why these two DNA samples give different results, when they're both 50% G-C. Fraction of DNA…

A: DNA is the genetic material that carries all the hereditary information from generation to…

Q: PCR uses a very special DNA polymerase, tell me where it came from and why it is special to PCR.

A: PCR stands for polymerase chain reaction. It is used to amplify the specific region of template DNA.

Q: A forensic sample contains a mixture of female epithelium cells and male sperm cells. How will you…

A: DNA profiling is a highly effective method for resolving criminal cases. If sufficient DNA from just…

Q: Samples came to the laboratory for analysis. You are asked to identify the differences between these…

A: Spectrophotometer is used to determine the concentration of any unknown sample. DNA is a…

Q: A hand-drawn PCR diagram to show the role of each component and relevance of each temperature shift…

A: Polymerase chain reaction (PCR) was first invented by Mullis in 1983. Its principle is based on the…

Q: If you were to re-do this lab again with the same basic constraints (one DNA source, multiple…

A: DNA fragments are run on a agarose gel.

Q: Is it easier to exclude a suspect in a criminal case on the basis of DNA evidence, or it is easier…

A: DNA profiling is a forensic technique used in criminal investigations. Here profiles of criminal…

Q: Evidence about the three-dimensional structure and arrangement of the nucleotides in DNA molecules…

A: DNA stands for deoxyribonucleic Acid. It is the genetic material present in the cell.

Q: In lane 1, a size standard was loaded, which contained a mix a DNA fragments known to be 1000 bp,…

A: Gel electrophoresis is a gel technique that uses an applied electrical field to separate nucleic…

Q: I'm extracting my own DNA using a gargle salt mixed together with liquid detergent and gently pour…

A: DNA is a long chain of nucleotides that contain the complete biological genetic information of…

Crime Scene Investigation

A crime scene refers to a place where a crime has occurred. The purpose of crime scene investigation (CSI) is to analyze the complete scene and catch the culprit based on the pieces of evidence collected from the place of crime. The people involved in this process are referred to as crime scene investigators.