How are the structures of protein and nucleic acids similar?
What will be an ideal response?
They are both linear, unbranched polymers composed of repeating subunits. Both are also capable of folding into biologically active higher-order structures.
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If you ran the same experiment as Engelmann without passing light through a prism, what would you predict?
A) The results would be the same. B) The bacteria would be relatively evenly distributed along the algal filaments. C) The number of bacteria present would decrease due to an increase in the carbon dioxide concentration. D) The number of bacteria present would increase due to an increase in the carbon dioxide concentration. E) The number of bacteria would decrease due to a decrease in the temperature of the water.
To test for the presence of starch, one would use
a. Benedict's solution. b. uncoated paper. c. Sudan IV. d. Lugol's solution.
Although most biologists believe that many species are becoming extinct each year because of the activities of humans, relatively few species actually appear on compiled lists of extinct species
What is one reason why so few species are listed as extinct? A) Many species are unknown to science and go extinct before they've been described. B) There really aren't that many species that have become extinct. C) Many species aren't listed because they aren't considered important. D) Only extinctions that are naturally caused are listed.
Which of the following is not involved in the specific targeting of proteins to lysosomes?
a. N-linked glycosylation in the ER b. Mannose phosphorylation c. The mannose-6-phosphate receptor d. Signal patches