A gene that produces multiple effects is called
a. co-dominant gene.
b. an X-linked gene.
c. an epistatic gene.
d. a pleiotropic gene.
e. an incompletely dominant gene
D
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Select the statement that describes the stability of DNA and RNA under typical cellular conditions.
A) Double-stranded DNA in the nucleus and single-stranded RNA in the cytoplasm are equally stable. B) Double-stranded DNA in the nucleus is more stable than single-stranded RNA in the cytoplasm. C) Single-stranded RNA in the cytoplasm is more stable than double-stranded DNA in the nucleus. D) Both RNA in the cytoplasm and double-stranded DNA in the nucleus can never be degraded within a cell.
In an annual tree ring, the wood with large diameter, thin-walled cells is ____
a. called early wood b. heartwood
c. formed from crushed phloem cells d. produced in the winter e. called late wood
Is it possible that the carbon atoms in your body may have once made up the living tissues of another person or animal in earlier times? This is
A. impossible since carbon can't enter a living system more than once. B. possible since carbon cycles through the biosphere. C. possible only if you are a cannibal. D. highly unlikely since carbon is always tied up in molecules in organisms or minerals.
Compare and contrast the pathogenicity of Clostridium botulinum and Clostridium tetani, including mechanisms of action of their toxins and disease manifestations
What will be an ideal response?