Where does binary fission begin?
a. the promoter region
b. the metaphase plate
c. the septum
d. the origin
d. the origin
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In a study of Arabidopsis thaliana researchers determined that:
A. the levels of CO mRNA did not follow a circadian pattern. B. the levels of CO mRNA were high and in sync with the light period when day-lengths were long. C. CO proteins accumulated only in the dark. D. CO proteins are stabilized by dark periods when day lengths are short. E. photoreceptors show no indication of stabilizing CO protein.
What types of genes are transcribed by RNA polymerase I? What is the structure of the promoter of such genes?
What will be an ideal response?
When using a microscope to view cells you obtained from scraping under your fingernails, you notice that the cells lack nuclei; therefore, you conclude that the cells must be a type of ________ cell.
A) plant B) eukaryotic C) fungal D) prokaryotic
HIV/AIDS and tuberculosis are both examples of current
A. outbreaks. B. epidemics. C. acute infections. D. opportunistic infections. E. pandemics.