How does DNA play a role in inheritance? Give an example of a dominant and reces
ID: 3473651 • Letter: H
Question
How does DNA play a role in inheritance?
Give an example of a dominant and recessive genetic disorder.
Give an example of an X- and Y- linked disorder.
How can genetics help to predict diseases?
What role does a genetic counselor play in helping families with known genetic diseases?
What disease(s) is gene therapy currently being tested on?
Has gene therapy been approved in the United States?
If gene therapy has been approved in the US, what is it being used to treat?
If gene therapy has not been approved in the US, why not?
What are some of the safety issues associated with gene therapy?
Do you believe that gene therapy is ethical? Why or why not?
Explanation / Answer
How does DNA play a role in inheritance?
DNA is a self replicating molecule that holds genes that are able to be inherited.
As an organism replicates/reproduces the DNA is passed on to the new member hence the new member inherits the traits (genes) of the parent.
Give an example of a dominant and recessive genetic disorder.
Huntington disease is a dominant genetic disorder where only one copy of a disease allele is necessary for an individual to be susceptible to expressing the phenotype.
sickle cell anemia is a recessive genetic disorder where two copies of a disease allele are required for an individual to be susceptible to expressing the phenotype.
Give an example of an X- and Y- linked disorder.
Hemophilia is an X linked inherited genetic disease
Swyer syndrome is a Y linked inherited genetic disease
How can genetics help to predict diseases?
Genetic testing involves testing for specific changes in chromosomes, DNA, or proteins, depending on the suspected disorder. Changes in the genes and the possible correlation with genetic disorders helps in predicting genetic disease.
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