Why would you want to separate DNA?

Answer 1

There is a variety of reasons you would want to isolate D.N.A these include:

1. Medicine

- to test newborn babies for genetic disease by sequencing the relevant gene e.g. cystic fibrosis

- studying the gene involved in causing cancer to identify the mutation causing disease

2. Crime

- analyze forensic evidence to establish events and identify people present at a crime scene and the positive identification of a corpse

3. Food Safety

- trace the origin of an outbreak of food poisoning

4. Biotechnology

- isolate genes of interest and insert them into plants to give them: better test / pesticide resistance / increased nutrient value, or into bacteria and use them as 'factories' to produce high value products like the peptide insulin.

Hope that helped in some way!

Answer 2

There is a variety of reasons you would want to isolate D.N.A these include:

1. Medicine

- to test newborn babies for genetic disease by sequencing the relevant gene e.g. cystic fibrosis

- studying the gene involved in causing cancer to identify the mutation causing disease

2. Crime

- analyze forensic evidence to establish events and identify people present at a crime scene and the positive identification of a corpse

3. Food Safety

- trace the origin of an outbreak of food poisoning

4. Biotechnology

- isolate genes of interest and insert them into plants to give them: better test / pesticide resistance / increased nutrient value, or into bacteria and use them as 'factories' to produce high value products like the peptide insulin.

Hope that helped in some way!

Answer 3

One must try their level best in minimizing contamination while isolating DNA. If the materials used (like reagents and tubes) are contaminated with bacteria for example, the final DNA sample will also contain a certain amount of bacterial DNA contamination. This negatively affects any further experiments. Therefore, it is strictly advisable to use sterile lab-ware while isolating DNA.

Answer 4

1. cloning

2. identification of a person

3. use it to get your self-tested for various diseases

4. identification of paternity and maternity cases in forensic level

Answer 5

o Genetic testing

o Body Identification

o Analysis of forensic evidence

Answer 6

Cause different bacteria has different DNA composition. Isolated colony assures that the bacterial DNA you are extracting is coming from one specie only.

Answer 7

for further transcription