A proteins __________ determines its function.
Fill in the blank(s) with the appropriate word(s).
Answer: Structure
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In the crystal matrix of ordinary salt, the sodium and chlorine are held together by:
A. peptide bonds. B. covalent bonds. C. ionic bonds. D. hydrogen bonds. E. nonpolar bonds.
The most stable array of species in a given area is called a(n) ____________________ community. Fill in the blank(s) with the appropriate word(s)
Scientists can determine the size of DNA fragments through a process known as gel electrophoresis. In this process, DNA is loaded into a gel submerged in a liquid buffer through which an electric current is run. Large DNA molecules move slower and can be observed at the top of the gel, whereas smaller DNA fragments move faster (and are seen at the bottom of the gel). Based on what you know about the properties of DNA, how is the electric current arranged in this process?
a. Since DNA is negatively charged, the positive end is placed at the top of the gel, and the negative end is placed at the bottom of the gel. b. Since DNA is negatively charged, the negative end is placed at the top of the gel, and the positive end is placed at the bottom of the gel. c. Since DNA is positively charged, the negative end is placed at the top of the gel, and the positive end is placed at the bottom of the gel. d. Since DNA is positively charged, the positive end is placed at the top of the gel, and the negative end is placed at the bottom of the gel. e. Since DNA is uncharged, the placement of the positive end and negative end does not matter.
When you are overheated, you perspire, and when you are too cold, you shiver to generate heat. Which property of life is best represented by this example?
What will be an ideal response?