Genome-wide association studies are identifying many genes that may affect disease risk. Describe how GWAS is used to determine if a mutation or gene may be a risk factor for disease
What will be an ideal response?
The genomes of several hundred to several thousand diseased individuals are subject to individual genome sequencing as well as several thousand of non-diseased individuals. The genomes are then compared to determine if there are patterns or associations between certain genes and the disease state. This does not mean a carrier of the correlated gene will develop the disease, just that there is a risk factor.
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Which mechanism(s) increase(s) genetic diversity?
a. crossing-over between chromosomes during meiosis only b. independent assortment of chromosomes during meiosis only c. random DNA mutations only d. crossing-over between chromosomes and independent assortment of chromosomes during meiosis only e. crossing-over between chromosomes, independent assortment of chromosomes during meiosis, and random DNA mutations
The AT3 protein that Harry Meade was working with
a. is important to aid in clot formation. b. has never been cloned. c. can prevent blood clots from forming. d. is found only in sheep. e. is produced in the salivary glands.
Which of the following is a characteristic of living organisms?
A) Maintenance and regulation of internal conditions B) Ability to produce energy C) Have a nucleus D) Eat other organisms E) Have membrane-bound organelles
The blood from the digestive tract travels through two different veins before reaching the inferior vena cava.
Answer the following statement true (T) or false (F)