Date Name _Samantha Garcia Before you lea D Empt wast DDisp shar Exit Questions-

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Date Name _Samantha Garcia Before you lea D Empt wast DDisp shar Exit Questions- Microbiology 1. Antibiotics are routinely introduced into the food of cattle,Disp chickens and other livestock, which causes the animals to grow faster. Since the cost of antibiotics is low, the use of antibiotics is an easy way to achieve faster weight gain in Pl animals. Explain how this practice could affect the probability of developing populations of antibiotic-resistant bacteria that cause human disease. D Plac wit tra pa This can cause 2. You have been growing a sample of E. coli in the lab for 3 hours. about 10,000 cell per ml, and you know the population doubles every

Explanation / Answer

Antibiotic resistance is a consequence of evolution via natural selection process,every time antibiotic are introduced into food if cattle, chicken,etc the sensitive bacteria are killed but resistant bacteria are left to grow and multiple.This is how repeated use of antibiotics can increase the no of drug resistance bacteria that can cause diseases.

Also. About 80% of all the antibiotic produced in United States are added to animal feed_ not to fend off diseases but to boost growth.while many of these drugs are not specifically used to treat people,these non therapeutic use of antibiotics are a perfect way to cultivate resistant organisms including Salmonella bacteria that can sicken people who eat meat and poultry

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