(Durante el estado de reposo de la neuronaI) I).el sodio se concentra en el exterior de la célula. II) la bomba de sodio potasio mantiene el gradiente de concentración. III) los aniones se concentran en la cara externa de la membrana. Es (son) correcta(s) * A) solo I.
B) solo II.
C) solo III
D) solo I y II.
E) I, II y III.

You are studying several alleles of an e. coli helicase gene. one allele, called rsr, confers resistance to rs2014, an antibiotic that works by inhibiting helicase activity. bacteria with the rss allele are sensitive to rs2014. another allele, called ts-, produces a temperature sensitive mutation of the helicase. in bacteria with the ts- allele, helicase is inactivated at 42 °c but functions normally at 37 °c. helicase functions normally at both temperatures in bacteria with the ts allele. you obtain the following data while testing four strains of e. coli at different temperatures and doses of rs2014. each number represents the percentage of maximal dna synthesis. based on this data, assign the appropriate genotype to strains a–d in the spaces provided