Convergent evolution occurs when two species living in
A. the same area become reproductively isolated.
B. different areas become reestablished and are able to reproduce.
C. the same area are competing for the same resource thus causing one to evolve away from the other.
D. different areas evolve similarities through natural selection acting on those characteristics.
D. different areas evolve similarities through natural selection acting on those characteristics.
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When the chromosome is most condensed, which
of the following is true? a. Proteins are used to wind up the DNA. b. They are less susceptible to radiation. c. Lipid droplets form “beads on a string.” d. Carbohydrates wind the DNA into clusters. e. None of these are true.
The leader sequence of any protein that has just been translated functions to
A) determine the destination of the protein. B) stimulate translation of a protein. C) keep the protein in the cytosol. D) end translation of a protein. E) initiate degradation of an incomplete protein.
The 5? UTR (untranslated region) of bacterial mRNA contains sequences essential for translation
The ribosome-binding site (including the Shine-Dalgarno sequence) is located within 10 bases of the AUG start codon. What is the role of the ribosome-binding site in translation? What will be an ideal response?
Lipids act as _________ ______ within organisms; example: cell membrane is made up of lipids. fats
Fill in the blank(s) with the appropriate word(s).