Biology, 05.07.2019 19:20 kelleemaebarnha
What are pathogens ? pls me with this question
Answers: 1
Biology, 22.06.2019 23:00, calebwoodall6477
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
Answers: 1
Biology, 22.06.2019 23:20, lazyboy010406
Asample of digestive juice was removed from the stomach of a pig. the juice was placed in a test tube along with some grains of wheat. a second test tube was set up containing an equal number of wheat grains, with distilled water rather than digestive juice. the test tubes were kept for 8 hours at 40 degrees c. after 8 hours, the grains inside the digestive juice had broken into tiny particles. the grains of wheat, in the water, were wet but otherwise unchanged. what is the control group?
Answers: 3
Biology, 23.06.2019 02:20, treymartinez7250
The periodic table houses noble gas elements in group 18. these elements are highly stable and rarely react with any other elements. what is one possible reason for the stability of the noble gas elements? a. they easily form covalent bonds. b. the compounds that they form with other elements are very unstable. c. their outermost shell has the maximum number of electrons that it can hold. d. they require less activation energy.
Answers: 3
What are pathogens ? pls me with this question...
Mathematics, 17.06.2020 06:57
Mathematics, 17.06.2020 06:57
Mathematics, 17.06.2020 06:57
Mathematics, 17.06.2020 06:57