We often refer to the host of genetic factors in the genome that have an influence on a particular gene's expression as its genetic background. What influence does genetic background have over the phenotype of the organism?
What will be an ideal response?
Genetic background reflects all of the epigenetic influences exerted on a single or a set of genes that directly impact the observed phenotype.
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A species that is confined to a specific, relatively small geographic area is called
a. endemic. b. allopatric. c. sympatric. d. autopolyploid. e. polymorphic.
Which model of evolution is closest to what was originally suggested by Charles Darwin?
A. The graduated model matches best the reasoning of Charles Darwin. B. The punctuated equilibrium model matches best the reasoning of Charles Darwin. C. Neither the punctuated equilibrium model nor the graduated model match the original reasoning of Charles Darwin. D. Both the punctuated equilibrium model and the graduated model match the original reasoning of Charles Darwin.
What is the function of the sepal of a flowering plant?
a. To absorb sunlight for photosynthesis b. To protect the flower bud c. To attract pollinators d. To absorb nutrients e. To bear ovules
A mineral is considered to be a trace mineral if a normal person requires how much in their diet per day?
A) <1mg B) <1 microgram C) <100 mg D) >100 mg