Describe how denaturing a protein alters the function of that protein
What will be an ideal response?
Denaturing a protein permanently disrupts protein structure. Ordinarily, if the protein shape is altered, so is the function of that protein. This can be seen with denatured enzymes that lose the ability to bind the substrate, and thus no chemical reaction can occur.
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Isotopes that are unstable and decay when their nucleus breaks up into elements with lower atomic numbers, emitting significant amounts of energy in the process, are called:
A. energetic B. ionic C. radioactive D. isometric
Figure 7.6 from your text, shown below, is a set of histograms showing the frequency of different color patterns of water snakes of Lake Erie (Nerodia sipedon)
Type A snakes are unbanded, Type B are strongly banded, and Types C and D are intermediates. Given that natural selection favors unbanded snakes on the islands, how can you account for the presence/perpetuation of banded snakes on the islands? A) Mutation rates converting unbanded alleles to a banded form operate at high frequencies on islands. B) Natural selection favors unbanded snakes on the mainland. C) Snakes on the islands represent a case of the so-called founder effect. D) Natural selection favors banded snakes on the mainland, which occasionally migrate to the islands.
In each fly species, the entire body segment that gave rise to the original flight wings is missing. The mutation(s) that led to the flightless condition could have _____
A) duplicated all of the Hox genes in these flies' genomes B) resulted in paedomorphosis C) altered the expression of a Hox gene D) originated in another species
If uric acid accumulates in joints of humans the condition is referred to as
A. diabetes insipidus. B. gout. C. hypertension. D. atherosclerosis. E. distal convoluted tubule dysfunction.