Which of the following is true of steroids?
A) Steroids are polymers.
B) If people inject male steroid hormones, they can build muscle mass with no side effects.
C) Some amino acids are steroids.
D) Steroids exist naturally in humans as hormones.
E) Steroids contain a central, single-ring carbon structure.
Answer: D
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a. Total Quality Management b. Continuous Quality Improvement c. Performance Improvement d. Six Sigma
Sperm are stored in the _____.
A. interstitial cells B. seminiferous tubules C. vasa deferentia D. perineum
DNA polymerase I
A. seals DNA gaps. B. adds bases to new DNA chain. C. removes primers. D. proofreads DNA chain. E. All of these choices are correct,
RNA molecules that have catalytic activity are known as ________.
Fill in the blank(s) with the appropriate word(s).