Riboswitches are folded RNAs that act as switches to turn protein synthesis on or off in response to _________.
A) changes in the environment
B) specific tRNAs
C) specific codes from the DNA
D) the presence or absence of ubiquitins
A) changes in the environment
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In myelinated axons the voltage-regulated sodium channels are concentrated at the nodes of Ranvier
Indicate whether the statement is true or false
A(n) ________________________________________ is a group of turkey eggs
Fill in the blank(s) with correct word
Unlike humans, bottlenose dolphins do not suffer from the effects of sleep deprivation. Why?
A) Dolphins "catnap" throughout the day, so they don't need to go into deep sleep. B) In dolphins, one half of their brain sleeps while the other half of the brain remains active. C) Sleep is required to maintain brain function in humans, but not in dolphins. D) Dolphins take turns waking each other up, so all have a chance to sleep.
Smell and taste disorders may be caused by
A) all of the above. B) a side effect of a drug. C) allergies. D) a head injury.