A fellow student is unsure why his gram-negative Escherichia coli is purple. Upon examining the Gram stain kit, you notice it didn't have alcohol. What caused the bacteria to be purple instead of pink

Which of the following matches the organisms described with the correct domain? a. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycanb. archaea--multicellular, eukaryotic organisms that do not have cell wallsc. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sourcesd. bacteria--unicellular, eukaryotic organisms that always lack cell walls

What enzyme is most important for dna replication and why?

The activity of the modern sample is 1.10 bq . how long does that measurement take?