The predominant mechanism driving cellular differentiation is the difference in gene _____
A) expression
B) sequences
C) order
D) replication
Answer: A
You might also like to view...
Early microscopes did not allow clear visualization of cells because they were limited by
A) magnification. B) number of kernels. C) resolution. D) refraction. E) both magnification and resolution.
Normal saline is which type of solution?
a. hypertonic b. hypotonic c. isotonic d. hemolytic
Suppose you estimate the following regression of a firm's Sales and number of employees at each location across the country: Sales = 95,342 + 0.76 Number of Employees. You are willing to believe you have a random sample of store locations, and a sufficiently large sample size. Which statements are not yet justified by the regression results?
A. On average a store with 100 employees is likely to have Sales of about = 95,342 + 0.76(100) = 95,418 B. Increasing the number of employees at a store by 2 will raise sales by 0.76 × 2 = 1.52 C. On average, stores with more sales have more employees. D. None of the answers is correct.
What is true about a biofilm-defective mutant generated by transposon mutagenesis?
a. The transposon interrupted a gene encoding a protein important for biofilm formation. b. The transposon inserted a gene that prevented biofilm formation. c. The transposon introduced antibiotic resistance that interfered with biofilm formation. d. A and B could both be true.