Describe how microarrays have led to improved diagnosis of two types of diffuse large B-cell lymphomas
What will be an ideal response?
Diffuse large B-cell lymphoma patients predominantly fell into two groups. One responded well to chemotherapy while the second group responded poorly. Previously there was no way to know which group the patient fell into before treatment. Gene-expression microarrays demonstrated that there are different gene-expression patterns between the two groups and can be used to spare patients whose cancer would not respond well to chemotherapy and the horrendous side effects of the treatment.
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If cells are grown in a medium containing radioactive 35S, which of these molecules will be labeled?
A) phospholipids B) nucleic acids C) proteins D) amylose E) proteins and nucleic acids
An infectious RNA molecule is a
A. virion. B. bacteriophage. C. virus. D. prion. E. viroid.
In living systems molecules involved in hydrogen bonding almost always contain either oxygen or nitrogen or both. How do you explain this phenomenon?
A) Oxygen and nitrogen are elements found in both nucleic acids and proteins. B) Oxygen and nitrogen are elements with very high attractions for their electrons. C) Oxygen and nitrogen are elements found in fats and carbohydrates. D) Oxygen and nitrogen were both components of gases that made up the early atmosphere on Earth.
Because the same microbes are not always present on food from harvest to harvest, (fresh/natural/starter) cultures are used in the production of alcoholic beverages
What will be an ideal response?