Which level of protein structure do the ?-helix and the ?-pleated sheet represent?

A) primary
B) secondary
C) tertiary
D) quaternary
E) primary, secondary, tertiary, and quaternary


Answer: B

Biology & Microbiology

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common EXCEPT a. low moisture. b. permafrost. c. minimal plant life. d. cold temperatures. e. nutrient-poor soils.

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An autosomal dominant condition that causes a person to grow no taller than about 4 feet 4 inches is

a. Marfan syndrome. b. Tay-Sachs disease. c. Huntington disease. d. achondroplasia. e. phenylketonuria.

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In the figure, the star represents a recent mutation at a gene locus. The letters represent other loci. B Which other locus is most likely to be in linkage disequilibrium with the mutation (all else being equal; assume a sexually reproducing organism)?

A. Based on the supplied information, there is equal probability of linkage disequilibrium at all loci. B. D C. A D. C E. B

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Why might spinach be more nutritious than iceberg lettuce?

What will be an ideal response?

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