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Fill in the blank for first 2 questions and brief answer for 3rd. 1. During exercise, the heart rate will increase above 100 beats per minute. This is the result of higher centers of the brain activating the (Blank1) (Blank 2) in the (Blank 3) which will produce output from […]

In a nondividing cell such as a liver cell, why must the flow of membrane between compartments be balanced, so that the retrieval pathways match the outward flow? Would you expect the same balanced flow in a gut epithelial cell, which is actively dividing? Clathrin-coated vesicles bud from eukaryotic plasma […]

1. Are acid-fast negative cells stained by carbolfushin? if so, how can this be a differential stain? 2. What kind of bond is bound by charges? 3. How does heating a bacterial smear during a ZN (Ziehl-Neelsen) stain promote entry of carbolfushsin into the acid fast cell wall? 4. why […]

You have identified a mutant E. coli strain that cannot synthesize histidine (His-).To determine the location of the his- mutation on the E. coli chromosome, interrupted mating experiment was performed with 5 different Hfr strains. The following chart shows the time of entry (minutes, in parentheses) of the wild-type alleles […]