Which is another name for bone cells that remain alive even after the extracellular matrix becomes hardened with calcium phosphate crystals?
A. Fibrocytes
B. Leukocytes
C. Osteocytes
D. Chondrocytes
E. Erythrocytes
Answer: C
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Some proteins overexpressed at high levels resulting in the formation of inclusion bodies can abolish the goal of producing large quantities of active protein. What could be done to minimize this issue?
A) Codon optimize the gene. B) Decrease the number of biobricks in the vector. C) Simultaneously produce intracellular chaperonins. D) Switch to an expression host with a larger intracellular volume.
Salmon move between freshwater and marine environments during their lifecycle. Which of the following statements about their lifecycle is correct?
A. None of the answer options is correct. B. Juvenile salmon and spawning adult salmon must avoid excessive loss of water. C. Feeding adult salmon must avoid excessive gain of water. D. Feeding adult salmon and juvenile salmon must avoid excessive loss of electrolytes. E. Spawning adult salmon must avoid excessive gain of electrolytes.
The 30-cm floral tube of the flower Angraecum and the 35-cm proboscis of its hawk moth pollinator are the result of
a. preadaptation. b. adaptive radiation. c. coevolution. d. convergent evolution. e. key innovation.
The fleshy extension of the soft palate is known as the
A. pharynx. B. adenoid. C. uvula. D. epiglottis. E. cecum.