A membranous sac that contains interacting organic molecules, hypothesized to have formed prior to the earliest life-forms:
A. protocell.
B. archaea.
C. ribozyme.
D. chemotroph.
E. protist.
Answer: A
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A. Missense B. Frameshift C. Nonsense D. Deletion
An infection that persists over a long duration is referred to as a ______ infection.
Fill in the blank(s) with the appropriate word(s).
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Which proteins are encoded by genes that code for the first mRNAs transcribed in Drosophila embryos?
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