Imagine you conduct a parabiosis experiment with two strains of mice, one of which lacks a functional leptin gene (ob strain) while the other lacks a functional receptor for this hormone (db strain). Which of the following outcomes would you observe?
A. no weight change in the ob mouse
B. no weight change in the db mouse
C. increased body weight in the ob mouse
D. decreased body weight in the ob mouse
E. decreased body weight in the db mouse
D. decreased body weight in the ob mouse
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Select the best response to the question. ? Hand hygiene with an alcohol-based hand rub is indicated in which of the following situations?
A) after eating B) before repositioning a patient in bed C) if hands are visibly soiled D) after using the restroom
An essential nutrient is one that
A) is used for energy storage. B) is required in large amounts. C) can be found only in animal products. D) cannot be made by the organism.
You have identified an enzyme that appears to be involved in the addition of palmityl group (a fatty acid) to certain proteins. Knowing that palmitoylated proteins are usually targeted for delivery to the plasma membrane, in which organelles might this enzyme be expressed?
A. golgi apparatus and nucleus B. endoplasmic reticulum and nucleus C. endoplasmic reticulum and ribosomes D. golgi apparatus and endoplasmic reticulum
Most cancers are hereditary?
a. true b. false