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Imagine that you start with 1,000 competent bacteria in your tube and you know that:
1) half of them get transformed, and
2) bacteria double every 20 minutes.
How many bacterial cells would you expect to see if you plated the entire solution on one Ampicillin-treated plate and incubated them for one hour?
Two solutions are separated by a semipermeable membrane that is permeable to sodium but not chloride or potassium ions. Solution A on the left contains a solution that is 100 mM NaCl, while Solution B on the right has a concentration of sodium chl..
Mitochondria carrying out oxidative phosphorylation consume oxygen. What happens to oxygen in mitochondria?Describe the effect of an uncoupling agent such as 2,4-dinitrophenol on the rate of oxygen consumption.
The boss in your laboratory has just heard of a proposal through another laboratory that genes for eye color & the length of body bristles may be linked in Drosophila .
Suppose a membrane potential of -70mV, what are two reasons why the electrochemical gradient for Ca2+ ([10-7 mM] free in the cytoplasm
Calculations must be made assuming that the minimum significant number has four significant digits. If all of phosphorus in a 3.00 gram sample of MgNH4PO4 is extracted and used to make a diphosphorus pentaoxide, what mass of P2O5 could be produced.
Explain the difference between and antigen and an antibody. How do they relate to blood typing?
All three major types of RNA are processed before they are mature. They are derived from precursor RNA molecules that are considerably longer than the final RNA product.
Tony who is not diseased has a sister with cystic fibrousis(CF). neither of his parents have (CF).tony is expecting a child with Tina.Tina's family history is unknown.what is the probability that tony is heterozygous for the CF gene? Explain your ..
A husband and wife both have normal skin pigmentation. His father was an albino and her mother was an albino. Albinism is due to an autosomal recessive gene.
Eukaryotic RNA polymerases lack sigma factors. What proteins bind TATA promoters in eukaryotes.
The membranous vesicle of a submitochondrial particle after removal of the F1 spheres would be able to (1) oxidize NADH; (2) produce H2O from O2; (3) generate a proton gradient; (4) phosphorylate ADP.
Determine the phases of an action potiental and what channels open/close, what causes them to open/close, what ion moves, and in which direction do the ions go?
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