The relationship between Trichonympha protozoa and its termite host, and Xenorhabdus bacteria and its nematode host, are both obligatory relationships.
Answer the following statement true (T) or false (F)
False
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The donor cell makes ________ whose function is to bring F- cells close enough to transfer a ________ to the recipient.
A. an F factor; replicated F factor B. a sex pilus; single strand of DNA C. a sex pilus; bacterial chromosome D. a sex pilus; double strand of DNA E. an F factor; fertility plasmid
Four of the five answers listed below are components of the mixture used in Miller and Urey's experiment. Select the exception
a. ammonia b. methane c. water d. hydrogen e. oxygen
Hershey and Chase performed an experiment in which they used radioactive isotopes of phosphorus and sulfur to label different components of bacterial viruses. Their results clearly showed that
a. DNA was entering into the infected bacteria. b. the viruses did not contain protein. c. the viruses did not contain DNA. d. protein was entering into the infected bacteria. e. genetic material normally contains radioactive isotopes.
Where do correlation, association, and learning occur in the brain?
A. cerebellum B. corpus callosum C. medulla D. cerebrum E. pons