Answer. :UV radiations can significantly affect the in -situ single cell activity of bacteria. Exposure to natural solar UV radiations result in a decrease in bacterial abundance,amino acid uptake ,exoenzymatic activities,oxygen consumption and significant inhibition of protein and DNA synthesis.
Beta galactosidase or lactase is the enzyme responsible for the hydrolysis of lactose into its monomeric units glucose and galactose.Exposure to UV radiations inhibit the lactase enzymatic activity and hence results in the slow catalysing power of bacteria.
Propose a specific, testable hypothesis that could be one possible explanation to the following questions. Describe...
A mutation within a yeast cell has left it with very slow growth. After running all of the proteins from this cell on an acrylamide gel you see that all of the cell’s proteins are present in normal proportions, but a Bradford assay tells you that the total amount of protein in the mutant yeast cell is significantly decreased. What could explain the reduction in global protein production within this yeast cell? Propose a specific, testable hypothesis that could be...