_____________________ is defined as the interaction of two or more gene variants to produce a certain phenotype
Fill in the blank(s) with correct word
Epistasis
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In some instances environmental change causes a situation where one phenotype is favored for a period of time, and then a different phenotype is favored. This oscillating selection causes
A. the maintenance of genetic variation in the population. B. an increase in point mutations. C. elimination of rarer genotypes because of uneven selection. D. extinction of the population. E. high population increase to maintain phenotypic variation.
A 36-year-old woman is on a cruise ship and later develops nausea, abdominal pain, vomiting, and diarrhea. She is most likely suffering from which virus?
a. Norovirus b. Rotavirus c. Coronavirus d. Torovirus
When a neuron membrane potential becomes less negative, it is said to be ____
a. depolarized b. hyperpolarized c. repolarized d. damaged e. activated above the threshold potential
The communities established under pure stands of eastern hemlock will likely become extinct because of ____
a. feeding on the trees by the wooly adelgid b. the Bd infection of hemlock trees c. pathogenic viruses attacking these populations d. pathogenic fungi attacking hemlock trees e. invasive species exploiting their niche