One important way in which RNA differs from DNA is that RNA is missing a key hydroxyl group on its sugar
Indicate whether the statement is true or false.
ANSWER: False - DNA
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In competitive inhibition an inhibitor molecule binds an enzyme at the active site
1.True 2.False
Transgenic mice engineered to contain the mutant versions of the huntingtin gene with various numbers of
_____________________ repeats have phenotypes similar to humans affected by Huntington disease. Fill in the blank(s) with the appropriate word(s).
Transport epithelia are responsible for __________.
a. pumping water across a membrane b. forming an impermeable boundary at an interface with the environment c. the movement of solutes in osmoregulation or excretion d. transporting urine in the ureter and urethra e. the passive transport of H+ and HCO3- for the regulation of pH
Lateral meristems
a. are groups of dividing cells. b. are responsible for increasing the width of a stem or root. c. are cambia. d. produce secondary growth only. e. fit all of these descriptions