The part of a membrane protein that extends through the phospholipid bilayer is primarily composed of amino acids that are
A. highly polar.
B. negatively charged.
C. non-polar.
D. positively charged.
E. water soluble.
C
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If you plot mean annual precipitation against mean annual temperature and look at the distribution of major biomes relative to these two variables, which biome would be in the central region of the graph?
A. savanna B. hot desert C. tropical rain forest D. temperate deciduous forest E. taiga
For type I diabetes, 15 genes on four different chromosomes are known to influence this
disease. Thus, this disease is __________.
a. polygenic b. pleiotropic c. genomic d. a genetic marker
Describe the theory that attempts to explain the species specificity of viruses to their hosts. What will be an ideal response?
Suppose that, with regard to a particular genetic locus with two alleles, A and a, we know that 60% of the alleles in the gene pool of a particular large population are A. Suppose further that we observe this population for five generations, during which we know that no mutation, selection, or migration has occurred. After this period, the frequency of the a allele is expected to be _____.
A) 0.6 B) 0.4 C) 0.25 D) 0.16 E) 0.5