Which of the following correctly shows the order of the phases in the generation of life on Earth?
a. Development of membranes, formation of small organic molecules, formation of self-replicating informational molecules
b. Development of membranes, formation of self-replicating informational molecules, formation of small organic molecules
c. Formation of self-replicating informational molecules, development of membranes, formation of small organic molecules
d. Formation of self-replicating informational molecules, formation of small organic molecules, development of membranes
e. Formation of small organic molecules, formation of self-replicating informational molecules, development of membranes
Ans: e. Formation of small organic molecules, formation of self-replicating informational molecules, development of membranes
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A(n) ________ solution is one that contains a solute concentration that is ________ than that within the cell and results in the "bursting" of the cell.
Fill in the blank(s) with the appropriate word(s).
In which of the stages below are the chromosomes present as attached sister chromatids? I. metaphase II. telophase III. prophase IV. anaphase
a. III and IV b. I, III, and IV c. I and III d. I, II, and III e. I, II, III, and IV
Which organisms can partner with fungi to form lichens?
a. all proteobacteria b. cyanobacteria c. archaea d. Gram-positive bacteria e. spirochetes
In McClintock's maize studies, which genetic element is found at the site of chromosome breakage?
What will be an ideal response?