SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Antibiotic resistance was inherited from an ancestral population
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An antibiotic resistance plasmid is received from a bacterium in another population
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The enzyme needed for antibiotic resistance is received from a bacterium in another population
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The bacteria have mutated in response to antibiotics in the environment
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Detailed explanation-1: -These bacteria can now increase in numbers and the end result is a population of mainly resistant bacteria.
Detailed explanation-2: -Antimicrobial resistance happens when germs like bacteria and fungi develop the ability to defeat the drugs designed to kill them. That means the germs are not killed and continue to grow. Resistant infections can be difficult, and sometimes impossible, to treat.
Detailed explanation-3: -Through mutation and selection, bacteria can develop defense mechanisms against antibiotics. For example, some bacteria have developed biochemical “pumps” that can remove an antibiotic before it reaches its target, while others have evolved to produce enzymes to inactivate the antibiotic.
Detailed explanation-4: -Resistant bacteria continue to multiple, even when exposed to antibiotics; Horizontal Gene Transfer – Antibiotic-resistant genetic material is transferred between different bacteria cells. This can happen in three different ways: transformation, transduction or conjugation.
Detailed explanation-5: -Antimicrobial resistance is accelerated when the presence of antibiotics and antifungals pressure bacteria and fungi to adapt. Antibiotics and antifungals kill some germs that cause infections, but they also kill helpful germs that protect our body from infection. The antimicrobial-resistant germs survive and multiply.