Which of the following statements accurately describes ALL viruses:
A. Virus particles are metabolically inactive.
B. All viral genomes are DNA.
C. Virus growth is exponential.
D. Viruses use their own ribosomes for protein synthesis.
E. Viruses like other microbes divide by binary fission
Ans: A. Virus particles are metabolically inactive.
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a. parathyroid hormones. b. somatotropin. c. antidiuretic hormones. d. insulin. e. glucocorticoids.
The virus first shown to have RNA as its genetic material was tobacco mosaic virus (TMV)
Indicate whether the statement is true or false
All of the following events occur during prometaphase EXCEPT:a
the nuclear envelope breaks down. b. the nucleoli disappear. c. the mitotic spindle is completely assembled. d. the spindle fibers "capture" chromosomes. e. the duplicated chromosomes become visible with the light microscope
The brain stem contains the midbrain, the pons, and the medulla oblongata.
Answer the following statement true (T) or false (F)