Relatively small organic molecules with a central carbon atom which is bonded to a carboxyl group, an amino group, a carbon containing group, and a hydrogen atom are called:
A. amino acids.
B. fatty acids.
C. enzymes.
D. peptides.
E. nucleotides.
A. amino acids.
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Consider a glucose molecule that is completely oxidized during the process of cellular respiration. What is
the correct sequence in the series of reactions? I. glycolysis II. phosphorylation III. Krebs cycle
a. I >>> II >>> III b. I >>> III >>> II c. II >>> I >>> III d. II >>> III >>> I e. III >>> I >>> II
Under normal circumstances, several important types of genes control the activities of cells
Some of these genes (proto-oncogenes, tumor suppressor genes, and mutator genes) have critical roles in regulating cell growth and division, as well as repair of DNA during replication. Despite their important roles, mutations to any one of these genes alone do not induce a cancerous condition. Explain why.
Suppose you have two departments and have daily data on complaints and number of products they oversee for the departments over two years. In the second year, you increased the number of products under the scope of department #2 by 10. To estimate the effect of this increase in the number of products, you estimate the following regression: Complaintsit = ? + ?1 × Department #2it + ?2 × Year2it + ?3 × Department #2it × Year2it + Uit. Which coefficient controls for non-time varying effects that make department #1 have more complaints than department #2?
A. ?3 B. ?1 C. ?2 D. ? + ?3