In males, genes on the X chromosome are
A) expressed.
B) disease-causing.
C) mutant.
D) autosomal.
A) expressed.
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Four of the five answers listed below release secretions that assist digestion. Select the exception
a. salivary gland b. esophagus c. pancreas d. gall bladder e. liver
A GWAS tests for a strong association of genotype (using DNA markers) and phenotype in natural populations. Therefore, which of the following would be true of linkage disequilibrium?
A) There is a significant correlation between phenotype and genotype. B) The P value is > 0.05. C) The lod score is negative. D) There is evidence of inbreeding. E) There is a deviation from Hardy-Weinberg equilibrium.
All of the following are distinctions between alpine tundra and arctic tundra except:a
Alpine tundra is located at high altitudes. b. Alpine tundra typically lacks permafrost. c. High elevations of temperate mountains do not have the great extremes of day length that are associated with the changing seasons in high-latitude biomes. d. The intensity of solar radiation is greater at high elevations than at high latitudes. e. Alpine tundra receives less precipitation than arctic tundra
Which of the following types of microbes might be found in a boiling hot spring?
A. hyperthermophiles B. phototrophic bacteria C. methanogens D. non-thermophiles E. halophiles