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You have isolated an epithelial cell line which is unresponsive to EGF (normal e

You have isolated an epithelial cell line which is unresponsive to EGF (normal epithelial derived cell lines require EGF in the culture media for growth). You suspect that EGF rec…

You have isolated an epithelial cell line which is unresponsive to EGF (normal e

You have isolated an epithelial cell line which is unresponsive to EGF (normal epithelial derived cell lines require EGF in the culture media for growth). You suspect that EGF rec…

You have isolated an epithelial cell line which is unresponsive to EGF (normal e

You have isolated an epithelial cell line which is unresponsive to EGF (normal epithelial derived cell lines require EGF in the culture media for growth). You suspect that EGF rec…

You have isolated an epithelial cell line which is unresponsive to EGF (normal e

You have isolated an epithelial cell line which is unresponsive to EGF (normal epithelial derived cell lines require EGF in the culture media for growth). You suspect that EGF rec…

You have isolated an inhibitor, named edeine, from an undrinkable batch of home-

You have isolated an inhibitor, named edeine, from an undrinkable batch of home-brewed beer that was contaminated by an unknown microbe. Edeine inhibits eukaryotic protein synthes…

You have isolated an intact preparation of mitochondria, and add malate and ADP

You have isolated an intact preparation of mitochondria, and add malate and ADP + Pi. You observe the consumption of oxygen and the simultaneous production of ATP. Starting with t…

You have isolated an octopeptide from a rare fungus. This peptideprevents baldne

You have isolated an octopeptide from a rare fungus. This peptideprevents baldness and you wish to determine its amino acidsequence. The composition is Lys2 , Asp, Tyr, Phe, Gly,S…

You have isolated an organi sm from the urine of Patient X, a 24 year old female

You have isolated an organi sm from the urine of Patient X, a 24 year old female. It is showing amma hemolysis on blood agar and the col onies are large with an entire margin and …

You have isolated an organism from the urine of Patient X, a 24 year old female.

You have isolated an organism from the urine of Patient X, a 24 year old female. It is showing gamma hemolysis on blood agar and the colonies are large with an entire margin and a…

You have isolated different recombinant cDNA clones from pancreas mRNA. Based on

You have isolated different recombinant cDNA clones from pancreas mRNA. Based on their DNA sequence, you suspect the cDNA clones encode a protein that binds to the promoter of an …

You have isolated double stranded DNA from a virus and measured the relative amo

You have isolated double stranded DNA from a virus and measured the relative amount of deoxyadenosine and deoxycytidine in the DNA sample. You denote the two strands in the molecu…

You have isolated five different homozygous recessive mutant lines that all prod

You have isolated five different homozygous recessive mutant lines that all produce the same phenotype, and now wish to determine if the mutations affect the same gene. To do this…

You have isolated intact mitochondria from cardiac tissue. Assume all proteins a

You have isolated intact mitochondria from cardiac tissue. Assume all proteins and cofactors (ADP, P, NAD+, FAD etc.) necessary for electron transport and oxidative phosphorylatio…

You have isolated intact mitochondria from cardiac tissue. Assume all proteins a

You have isolated intact mitochondria from cardiac tissue. Assume all proteins and cofactors (ADP, Pi NAD+, FAD etc.) necessary for electron transport and oxidative phosphorylatio…

You have isolated mRNA corresponding to a protein kinase involved in human cance

You have isolated mRNA corresponding to a protein kinase involved in human cancer. Your ultimate goal is to study the properties of this kinase in an enzymatic assay to understand…

You have isolated several different temperature sensitive mutant ycast strains t

You have isolated several different temperature sensitive mutant ycast strains that stop proliferating when shifted from 25 degree C to 37 degree C. You analyze these mutant strai…

You have isolated several different temperature sensitive mutant yeast strains t

You have isolated several different temperature sensitive mutant yeast strains that stop proliferating when shifted from 25 degree C to 37 degree C. You analyze these mutant strai…

You have isolated several different temperature sensitive mutant yeast strains t

You have isolated several different temperature sensitive mutant yeast strains that stop proliferating when shifted from 25 degrees C to 37 degrees C. you analyze these mutant str…

You have isolated six rll-deletion mutants of bacteriophage T4 (a-f) that lie wi

You have isolated six rll-deletion mutants of bacteriophage T4 (a-f) that lie within gene rllA. You coinfect E. coli strain B in all possible pairwise combinations and plate the r…

You have isolated the gene (XA) that codes for protein X from species A and you

You have isolated the gene (XA) that codes for protein X from species A and you want to determine if a gene encoding an identical protein is present in the genome of species B, i.…

You have isolated the gene for a protein, nuculin (a protein that some people be

You have isolated the gene for a protein, nuculin (a protein that some people believe resides in the nuculus) that is normally localized to the nucleus. You locate in the gene the…

You have isolated the gene for a protein, nuculin, that is normallylocalized to

You have isolated the gene for a protein, nuculin, that is normallylocalized to the nucleus. You locate in the gene the portion of thecoding sequence that codes for the nuclear lo…

You have isolated the proteins from two other adjacent spots after 2D electropho

You have isolated the proteins from two other adjacent spots after 2D electrophoresis and digested them with? trypsin. Following MALDI-TOF mass spectrometry, the two proteins were…

You have isolated the proteins from two other adjacent spots after 2D electropho

You have isolated the proteins from two other adjacent spots after 2D electrophoresis and digested them with trypsin. Following MALDI-TOF mass spectrometry, the 2 two proteins wer…

You have isolated three different F-minus E. Coli strains, labeled A, B, and C,

You have isolated three different F-minus E. Coli strains, labeled A, B, and C, that are unable to grow on lactose as a sole carbon source (lac-).To determine which mutation is af…

You have isolated total RNA from muscle cells and constructed a muscle cDNA libr

You have isolated total RNA from muscle cells and constructed a muscle cDNA library. You wish to study the regulatory region of muscle-specific cDNA gene (gene M) that you have pr…

You have isolated two different mutants ( reg1 and reg2 ) causing constitutive e

You have isolated two different mutants (reg1 and reg2) causing constitutive expression of the emu operon (emu1 emu2). One mutant contains a defect in a DNA binding site, and the …

You have isolated two different mutants (reg1 and reg2) causing constitutive exp

You have isolated two different mutants (reg1 and reg2) causing constitutive expression of the emu operon (emu1 emu2). One mutant contains a defect in a DNAbinding site, and the o…

You have isolated two mutants of a normally pear-shaped microorganism that have

You have isolated two mutants of a normally pear-shaped microorganism that have lost their distinctive shape and are now round. One of the mutants has a defect in a protein you ca…

You have isolated two recessive mutations that affect coat color in guinea pigs.

You have isolated two recessive mutations that affect coat color in guinea pigs. The first mutation makes purple guinea pigs and the second one makes green guinea pigs. Guinea pig…

You have isolated what appears to be an intracellular parasite from a blood cult

You have isolated what appears to be an intracellular parasite from a blood culture from a human case of chronic fatigue syndrome in Chester County , Pennsylvania. Electron micros…

You have j ust been hired as a financial analyst for Lydex Company, a manufactur