To be a part of the biosphere any particular region
must
a. be close to the earth’s surface.
b. include sources of water.
c. support life.
d. include oxygen.
e. be exposed to sunlight.
Answer: c
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The process that produces mRNA from DNA is called
A. transcription. B. translation. C. replication. D. processing. E. post-translational modification.
In rabbits, four alleles exist for the c gene. The wild-type version, C+C+, is expressed as brown fur. The chinchilla phenotype, cchcch, is expressed as black-tipped white fur. The Himalayan phenotype, chch, has black fur on the extremities and white fur elsewhere. Finally, the albino, or “colorless” phenotype, cc, is expressed as white fur. This is an example of which type of inheritance?
a. codominance b. multiple mutations c. multiple alleles d. recessive lethal
The only organ that can permanently rid the body of excess H+ is the ____
a. kidney b. lungs c. skin d. liver e. spleen
During anaphase II of meiosis,
A. the centrioles form. B. daughter cells form. C. chromosomes move to poles. D. chromatids exchange parts.