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Transcript of Gene Mapping
Impact on Society
A Blessing & Curse of Science
Genetic mapping allows scientists to better understand the causes of diseases in humans that were present at birth.
Genetic maps lead scientists to many genes that are possibly linked to the cause of disorders such as diabetes, psychiatric conditions, asthma, heart diseases, and even cancer.
Mapping the genome is quite costly.
Getting your genome mapped could be seen as an advantage as well as a disadvantage. This usually depends on whether or not the benefits outweigh the disadvantages.
Genetic mapping is the first step in isolating a gene.
Once the gene is isolated, scientists can see if a gene has any direct connections to any sort of disease or disorder.
Scientists have also been able to look around the genome of animals and plants.
DNA markers are basically the "x" spot on pirate treasure maps of genetic maps.
Markers show the scientist the identity of the person.
Markers are mainly made up of DNA that doesn't necessarily have a gene.
DNA markers are essential in criminal investigations and other forensic applications.
Without the use of these markers, many investigations would have inaccurate findings.
Markers are also used in paternity tests when trying to identify if a man is the father of a child or not.
Sometimes babies are switched at birth, and maternity tests help the situation out a bit, which includes the use of DNA markers.
Finding the cause of death of a person is also helped by DNA markers.
How's it done?
Researchers collect blood or tissue samples from family members.
DNA markers can roughly locate where the infected gene is on the chromosome.
When many DNA markers show up on a genetic map, there is a high chance that one of those DNA markers is revealing where a disease trait or disease gene is.
Disease genes that carry a trait do not signify that you will inherit the disease or pass it down to your children.
Scientists can sequence the genome of plants and animals.
This allows them to develop crops for agriculture and breeds of animals.
These developed crops and breeds turn out more productive, nutritious, and can fight off diseases more efficiently.
These developed crops and breeds can also fight off insects and survive droughts more efficiently.
Genetic manipulation used in agriculture is overall beneficial to both the industries that make the product and the customers because more products are bought based on aspects such as their nutritious value.
A complete genetic map allow scientists to find the genes that carry genetic diseases.
By knowing this, scientists can find out why the disease occurs in the first place, which is the first step in finding a way to make treatments as well as develop possible cures.
Discovering that you have an incurable disease can help you decide on whether or not you want to risk having children that can inherit those traits/diseases.
If you do have a disease, you can ask your doctor how you can get treated and which medications are best for you.
There are psychological consequences.
Many people who find out they have an incurable disease sort of just give up on life. They stop trying to reach goals and there ambitions sink to the ground.
There are also many cases that show that people who find out they have an incurable disease become entirely reckless.
Genetic tests find mutations, not necessarily diseases.
Gene mapping can possibly indicate when you will DIE.
It could also possibly indicate whether or not you will painfully suffer.
Insurance companies can turn you down.
If gene mapping didn't exist today, death rates would be so much higher because much of the medicine that has been developed today has saved so many lives.
We'd get easily sick from diseases we find easy to cure in this day and age.
GenePlanet: Personal Genetics. "Interesting Facts." geneplanet.com.
Gene Planet, 2008-2011. Web. 19 Nov. 2012. www.g
GNN. "GENOME MAP." Genome News Network. J. Craig Venter Institute, 15 Jan.
2003. Web. 26 Nov. 2012. www.genomenewsnetwork.org
Harvard Magazine. "The Human Genome Map, 10 Years Later". harvardmagazine.com.
Harvard Magazine, 26 Feb. 2011. Web. 26 Nov. 2012. harvardmagazine.com/
National Institute of Health. "Genetic Mapping Fact Sheet". National Human Genome
Institute, 27 Feb. 2012. Web. 19 Nov. 2012. www.genome.gov/10000715
Rhodes, Alexander. "Genetic Mapping: Gift or Curse of Science?". cnx.org.
Connexions, Apr.-May 2009. Web. 19 Nov. 2012. cnx.org/content/
Connection to The Immortal Life of Henrietta Lacks
HeLa and gene mapping
Smith, Van (2002-04-17). "The Life, Death, and Life After Death of Henrietta Lacks, Unwitting Heroine of Modern Medical Science.". Baltimore City Paper. Retrieved 2010-03-02.
Other scientific pursuits
Effects of radiation