An environmental change, such as exposure to ultraviolet light, may cause a lysogenic virus to enter a lytic cycle.
Answer the following statement true (T) or false (F)
True
It is true that an environmental change, such as exposure to ultraviolet light, may cause a lysogenic virus to enter a lytic cycle.
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The two strands of a DNA double helix are held to each other by ____ bonds between nitrogenous
bases.
a. phosphodiester b. disulfide c. glycosidic d. hydrogen e. peptide
Even in the absence of transpiration, some water can move into the roots and partially up the xylem columns. This phenomenon is due to
A. root pressure. B. flooding. C. proton pumps. D. stomatal opening. E. phloem translocation.
A ball sitting on a table top has ________ energy because of its position.
Fill in the blank(s) with the appropriate word(s).
Which of these is a correct statement about pH?
A) The pH of a solution increases as its acidity increases. B) The pH of a basic or alkaline solution is less than that of an acidic solution. C) As the concentration of H+ increases in a solution, the pH decreases. D) A solution to which HCl has been added will have a greater pH than a solution to which NaOH has been added. E) Each number on the pH scale represents an increase of 108.