Which of the following statements concerning testosterone is true?
A. It prevents hair loss in pattern baldness.
B. It can lead to an increase in muscle mass.
C. It promotes atrophy of the larynx.
D. It decreases metabolic rate in males.
E. It causes the skin and hair to soften.
Answer: B
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You're working in a clinical lab and your boss has asked you to run a test on a patient's MHC Class I molecules. You need to isolate some cells from her collected tissues that express the Class I proteins. Which of the following cell types would you NOT use?
A. Neurons B. Liver cells C. Intestinal epithelial cells D. Red blood cells E. Skeletal muscle cells
Cellular respiration makes carbon dioxide as a waste product
Indicate whether the statement is true or false.
What is all of the DNA in a set of 23 chromosomes referred to as?
A. The phenotype B. A chromatid C. The karyotype D. The genome E. A centromere
Cerebrospinal fluid (CSF) is manufactured in the:
A. subarachnoid space. B. ventricles of the brain. C. posterior pituitary gland. D. anterior pituitary gland.