You are studying a diploid organism that has 14 sets of chromosomes. How many chromatids would this cell have in G2 phase?
A. 7
B. 14
C. 28
D. 56
D
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If the enzyme catalyzing the N to O reaction is inhibited, there will be a build-up of which compound?
a. M b. N c. O d. P e. Q
Examine the flux diagrams in Figure 25.6 to address the following questions. What is the difference in the rate of carbon exchange (in gigatons per year of carbon) between photosynthesis and respiration in the marine environment?
What will be an ideal response?
The first surgical anticeptic to be used was
A. iodine B. ethanol C. phenol D. none of these choices
The sputum of a 75-year-old man with chronic lung infections yields the following: • Many gram-negative coccobacilli in Gram stain • X and V factors required for growth • Nonhemolytic on rabbit blood agar The organism can be identified as:
a. Haemophilus aegyptius. b. H. parainfluenzae. c. Haemophilus haemolyticus. d. H. influenzae.