The molecules that contain instructions for building proteins are <em>B.) DNA molecules</em><em />
DNA consists of molecules called nucloetides. Each nucleotide contains a phosphate group, sugar group, and nitrogen base. There are four bases: cytosine (C), thymine (T), adenine (A), and guanine (G). The order of these bases is what determines the genetic code, or DNA instructions.
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Answer:
A. Mixed nerves is correct
Explanation:
Mixed nerves ( = both Motor/efferent & Sensory/afferent)
Efferent nerves ( = Motor nerves)
Motor nerves ( = Efferent nerves)
Sensory nerves (= Afferent nerves)
Out of the choices given, active and passive transport of solutes across a membrane typically differ because active transport always involves the utilization of cellular energy, whereas passive transport does not require cellular energy. The correct answer is B.