Clear zones within a bacterial lawn that represent areas in which the bacterial cells have been infected and lysed are called________.
A) phages
B) plaques
C) strains
D) viruses
B) plaques
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Explain why annotation is an important step in genomic sequencing projects, in the context of the percentage of the human genome composed of coding regions
What will be an ideal response?
Twins are said to be concordant for a trait when
A. both twins exhibit the trait. B. only identical twins exhibit the trait. C. only fraternal twins exhibit the trait. D. fraternal twins more often show the trait than identical twins. E. None of these is true.
At a constant temperature and pH, the rate of an enzymatically catalyzed reaction is inversely proportional to the
enzyme concentration. __________________ Indicate whether the statement is true or false.
One difference between mitotic cell division in animal cells and plant cells is that
A) cytokinesis occurs in animal cells but has not yet been observed in plant cells. B) animal cells do not undergo telophase. C) in animal cells, cytokinesis occurs as vesicles deposit carbohydrates along the equator. D) plant cells do not undergo anaphase. E) in plant cells, cytokinesis occurs as vesicles deposit carbohydrates along the equator.