Your friend's parents both have heart disease. She is considering having genetic testing done so she can see what changes she might be able to make to reduce her risk of developing it as well. What would you tell her?
a. Genetic testing is an inexpensive way to understand your medical profile.
b. Ethical concerns are minor when the information is released.
c. You can make lifestyle changes known to reduce your risk without genetic testing.
d. There are fully defined links between specific gene variations and chronic disease.
e. The results of the test will allow you to make specific lifestyle changes that will prevent heart disease.
Question 2
Which of the following is an example of the effect of certain nutrients or foods on gene expression and disease development?
a. A phytochemical found in milk has been shown to reverse uncontrolled cancer cell division in laboratory studies.
b. Aflatoxin from corn and other grains is thought to attach methyl groups to both histones and DNA, helping to prevent the development of liver cancer.
c. Genomics testing laboratories have shown the benefits of supplements that are matched to an individual's personal genetic prescription.
d. Supplementation of folate and vitamin B12 during pregnancy has been shown to turn off the yellow and fat gene in pups born to laboratory mice.
e. High levels of certain vitamins and minerals in the diets of mice during pregnancy can result in favorable changes to the DNA sequence of their offspring.
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SHEEP HEART
Chambers of the Heart
In crocodilians, birds, and mammals, the heart has four chambers: two atria and two ventricles. Oxyg