Which example does not include a case of phenotypic variance?

A. A population of finches has their bill size increased by directional selection
B. A population of humans in which individuals differ in height
C. A population of bacteria is polymorphic for a single nucleotide polymorphism that resulted from a synonymous mutation
D. A genetically uniform population of barnacles express more muscular reproductive organs in wavy environments
E. A population of garter snakes with several color patterns use different escape behaviors


Answer: C. A population of bacteria is polymorphic for a single nucleotide polymorphism that resulted from a synonymous mutation

Biology & Microbiology

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Which of the following is a false statement about the motor proteins, myosin and kinesin?

A. They both use ATP energy. B. They both move cargo to the plus end of a cytoskeletal filament. C. They both move along microtubules. D. None of the above statements are false.

Biology & Microbiology

If you entirely cover all of a plant’s leaves with a very thick wax, which processes would be

affected?

a. photosynthesis b. transpiration c. Both processes would be affected. d. Neither process would be affected.

Biology & Microbiology

The relationship between the fungi and algae in lichens is best described as

A. a possible controlled parasitism wherein the fungi withdraw food from the algae and the algae do not benefit from the association. B. a possible controlled parasitism wherein the algae are moistened and protected by the fungi, but the fungi do not benefit from the association. C. a simple cooperative mutualism between normally free-living strains. D. an endosymbiotic transfer of the chloroplasts of algae to the hyphae cells. E. a complete mixing of the genomes of the two groups at the cellular level.

Biology & Microbiology

In the male, an enlarged ________ gland may squeeze the urethra, causing urinary retention

Fill in the blank(s) with correct word

Biology & Microbiology