RNA molecules that have catalytic activity are known as ________.
Fill in the blank(s) with the appropriate word(s).
ribozymes
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The inheritance pattern in which the mother provides gene products to the developing egg cells is called
A. X inactivation. B. extranuclear inheritance. C. genomic imprinting. D. linkage. E. maternal effects.
In homeostatic control, the _________ compensates for any deviation between the actual value and the set point. In body temperature regulation in mammals, this function is carried out by __________.
A. effector; skeletal muscle B. sensor; neurons C. effector; brain D. integrator; skeletal muscle E. integrator; brain
A motor neuron and the muscle cells it synapses with form a(n)
a. active site. b. action potential. c. motor unit. d. cross bridge. e. motor network.
In order to distinguish them from bacterial flagella, archaeal flagella have been renamed as archaella because ________.
A. they are more slender than bacterial flagella B. archaean flagella are composed of more than one type of flagellin subunit C. archaean flagella are solid and not hollow D. some archaeon flagella don't have hooks E. All of the choices are correct.