A. The Heated Soil Scenario Walter placed 240 grams of sand (S), potting soil (P), and a mixture of sand and soil (M) into
separate containers. In each of the containers he placed a thermometer so that the bulb was
2.5 cm below the surface. He placed all 9 containers under identical heat lamps for an hour.
After heating the containers in three separate trials, the temperatures were (all are in degrees
centigrade):
S: 28, 27, 26
P:33, 29, 31
M: 29, 29, 22.5

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