Biology, 03.12.2021 19:50 Dragonskeld
In a transformation experiment, a sample of E. coli bacteria was mixed with a plasmid containing the gene for resistance to the antibiotic ampicillin (ampr). Plasmid was not added to a second sample. Samples were plated on nutrient agar plates, some of which were supplemented with the antibiotic ampicillin. The results of E. coli growth are summarized below. The shaded area represents extensive growth of bacteria; dots represent individual colonies of bacteria.
1. Wildtype + No Amp: Lawn
2. Wildtype + Amp: No growth
3. Plasmid + No Amp: Lawn
Which of the following best explains why there is no growth on plate II?
A. The initial E. coli culture was not ampicillin-resistant.
B. The transformation procedure killed the bacteria.
C. Nutrient agar inhibits E. coli growth.
D. The bacteria on the plate were transformed.
Answers: 3
Biology, 21.06.2019 21:00
If scientists are wrong about earth's age based on radioactive material and the decay rates are really much faster, how would nuclear power plants be affected?
Answers: 1
Biology, 22.06.2019 04:30
Asmall population of chimpanzees lives in a habitat thant undergoes no change for a long period of time. how will genetic drift affect this population
Answers: 3
Biology, 22.06.2019 06:00
How can you tell the difference between rough er from smooth er?
Answers: 2
In a transformation experiment, a sample of E. coli bacteria was mixed with a plasmid containing the...
Computers and Technology, 03.03.2020 03:18
Mathematics, 03.03.2020 03:18
Computers and Technology, 03.03.2020 03:18
English, 03.03.2020 03:19
Mathematics, 03.03.2020 03:19