• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Genetic Technology Biology Lab

Extracts from this document...

Introduction

Title: Genetic Technology Part A Restriction Enzymes and Gel Electrophoresis PLANNING A Purpose: Problem: How is a sample of DNA affected by restriction enzymes and gel electrophoresis? Prediction: Experimental Design: Refer to Handout Variables: a) Manipulated Variable: b) Responding Variable: c) Controlled Variables: PLANNING B Materials: Refer to Handout Procedures: Refer to Handout DATA COLLECTION Evidence: Refer to Handout DATA PROCESSING AND PRESENTATION Analysis: Questions 1. The purpose of each of the tubes A to D is to isolate the affect of each enzyme on the DNA. Thus the enzyme in each tube would be the only restriction enzyme that breaks the DNA into fragments. 2. The different positions of the bands on the gel represents the relative mass of the DNA fragment in that band. The lower the band appears, the smaller the mass of the fragment, the smaller the number of base pairs composing the fragment; The higher the band appears, the larger the mass of the fragment, the larger the number of base pairs composing the fragment. ...read more.

Middle

This however is very unlikely, a safe enough to say that no two individuals would have exactly the same DNA fingerprints, unless you had a twin. 2. The bands in the child's lane must match with a band in either the father's or mother's lanes because the child receives half of its DNA from its mother and half from the father. Thus some bands will match with the mother and some will match with the father, however, there will never be a band that does not match with neither the mother nor father, unless there is a mutation that occurs. 3. If the evidence DNA sample matched the DNA sample of the victim, I would conclude that the evidence collected came from the victim, and not from the suspect, thus further investigation of the crime scene would be needed in order to find a DNA sample that differed from the victim's DNA 4. ...read more.

Conclusion

Thus, if the father being tested doesn't have the allele, then he can't be the father. However, if he does, it can only prove that he has a chance of being the father. 2. I would not allow DNA fingerprinting to be used as evidence when there is no other evidence supporting that the accused was guilty because DNA fingerprinting only proves that the accused was present at the crime scene at one time or another, it does not prove that they were guilty of the crime CONCLUSION AND EVALUATION Conclusion: Through the findings of this experiment, DNA fingerprinting is enough to be used as evidence in paternity and criminal cases because no two individuals have the same DNA, thus DNA evidence can provide irrefutable evidence of the presence of one certain individual at a crime scene. However, it can only prove their presence, it cannot prove that their guilty. As well, since a child is composed of DNA from both the mother and father, the child's father can be identified by comparing their DNAs. Evaluation: REFERENCE ?? ?? ?? ?? KevinTse March 20, 2006 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Biology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Biology essays

  1. IB Genetic Lab

    Place the start of the measuring tape on the bottom of her feet and stretch the measuring tape to the top of her head. Record the height. 5. Thank the person. Observations Table1: Thirty-three females with age that range from 5 to 50 years, and each female's arm span

  2. Biology Industrial Melanism of Peppered Moth Lab

    After many generations, evolution gradually started to occur. Limitations and Evaluation There were a few limitations to the experiment such as the timer not yelling "hunt" simultaneously as they started the stopwatch and not yelling "stop" at exactly four seconds.

  1. The Use of Recombinant DNA Technology

    ways depending on, which DNA sequence, vector and place to introduce it to have been chosen. Recombinant DNA technology has been used in our every daily life, where sometimes our life even is dependent on it. Recombinant DNA has been introduced to bacteria, plants and even animals.

  2. LAB-What infuences blood pressure

    72 114 + 47,7 153 67 133 81 130 75 115 + 60 169 69 139 88 126 79 116 + 100 183 96 + 152 89 162 92 117 + 70 177 74 136 80 134 83 118 + 59,5 175 70 137 74 117 78 119 + 59,8

  1. Environment science lab soil planning lab

    The soil samples were taken in the morning because the soil has moisture present at that time. 1) For testing the Ph of the soil sample. 1) Add about 1 cm of soil to the first test tube which has the soil sample taken from 1m.

  2. IB Genetic Unit Notes

    In meiosis, this results in gametes with more than and less than the haploid number of chromosomes. For example, people with Down's syndrome have an extra chromosome 21, giving them a total of 47 chromosomes. 4.2.5: State that, in karyotyping, chromosomes are arranged in pairs according to their size and structure.

  1. IVF reproductive technology

    Islam, like Catholics believes that IVF treatment is a form of adultery. Another ideal in Islam is that every child must know its mother. IVF sperm donation can cause problems with this Ideal. IVF treatment and other reproductive engineering procedures have raised much public concern since the first 'test tube baby' was born in 1978.

  2. G4 planning lab

    basis of water content in raw-mix, as given below: Molding Techniques Technique Water content in raw - mix (%) Soft-mud or hand molding 25-35 Extrusion and wire cutting -Soft extrusion -Stiff extrusion 15-20 20-25 Semi - Dry or Dust Pressing 5-15 Dry Pressing <5 Of these, the extrusion and wire

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work