Which of the following sequences of events correctly describes the progress of a protein that will be secreted from the cell?
A. E A F C B D
B. E F A C B D
C. C F A B D E
D. The signal sequence is cleaved.
E. Protein synthesis begins in the cytosol.
F. Translation pauses.
Answer Key: A
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The evolution of a number of ecologically diverse species from a common ancestral species is
a. parapatric speciation. b. sympatric speciation. c. adaptive radiation. d. phyletic gradualism. e. convergent evolution.
Which of the following organisms do NOT
reproduce cells by mitosis?
a. plants b. fungi c. animals d. archaea e. plants and fungi
Bacteria
a. are diploid organisms. b. produce gametes. c. have a life cycle that varies between unicellular stage and multi-cellular stage. d. have a single circular chromosome. e. lack either DNA or RNA
In the creation of a DNA profile, _____ are typically used
a. minisatellites b. short tandem repeats c. introns d. exons e. plasmids