Genes

Study Notes

Genes, Environment-Lifestyle, and Common Diseases

Prevalence rate is the proportion of the population affected by a disease at a specific point in time.
The incidence rate is the number of new cases of a disease reported during a specific period, divided by the number of individuals in the population.
The ratio of the disease among the exposed population to the disease rate in an unexposed population is referred to as the relative risk.
Empirical risks for most multifactorial diseases are based on direct observation of data.
Familial hypercholesterolemia (FH) is caused by a reduction in the number of LDL receptors on cell surfaces.
Obesity is the most important risk factor for hypertension, influenced by genetic factors and lifestyle.
An autosomal dominant form of breast cancer accounts for approximately 5% of breast cancer cases in the United States.
If a woman has one affected first-degree relative, her risk of developing breast cancer doubles.
The offspring of an alcoholic parent have a fourfold increased risk of developing the disorder, even when raised by nonalcoholic parents.
Clinical trials using recombinant leptin have demonstrated moderate weight loss in a subset of obese individuals.
BRCA1 mutations increase the risk of ovarian cancer among women (20% to 50% lifetime risk).
BRCA2 mutations also confer an increased risk of ovarian cancer (10% to 20% lifetime prevalence).

Description

Test your knowledge on the relationship between genes, environment-lifestyle, and common diseases with this informative quiz. From prevalence rates to familial hypercholesterolemia, and from breast cancer risk factors to clinical trials, this quiz covers a wide range of topics. See how much you know about the relative risk, empirical risks, and genetic mutations that can increase the risk of developing diseases such as hypertension, obesity, and cancer. Take the quiz now and expand your knowledge on this fascinating topic!