Which neurotransmitter may function to regulate emotions and is involved in pathways that control complex movements?
A) dopamine
B) serotonin
C) norepinephrine
D) synapse
A
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Messenger RNA molecules have a nontranslated sequence called the ________ , which is located downstream of the termination codon.
Fill in the blank(s) with the appropriate word(s).
Which of these characteristics would most likely discourage self-pollination in a flower with both stamens and pistils?
A. many more stamens than pistils B. long pistils and short stamens C. long stamens and short pistils D. wind pollination E. determinant plants
Which of the following pairs is mismatched?
A. Helminths; multicellular B. Algae; multicellular C. Fungi; multicellular D. Protozoa; unicellular E. Protozoa; multicellular F. Fungi; unicellular
If the DNA in a cell consists of 20% adenine, it will also have _____ thymine.
A. 30% B. 80% C. 40% D. 20% E. 10%