EVERYDAY SCIENCE

SCIENCE

VIRUS AND BACTERIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How does antibiotic resistance show evidence of evolution?
A
Mutations in bacterial cells have resistance to antibiotics, bacteria offspring then gain resistance.
B
All bacteria go extinct. A new dominant bacteria has resistance to antibiotics.
C
Mutation in bacterial cells have resistance to antibiotics, bacteria offspring loose resistance.
D
Viruses and bacteria fought for dominance in precambrian time. Bacteria won and is more resistant to anibiotics.
Explanation: 

Detailed explanation-1: -Biological Mutations 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-2: -There are two main ways that bacterial cells can acquire antibiotic resistance. One is through mutations that occur in the DNA of the cell during replication. The other way that bacteria acquire resistance is through horizontal gene transfer.

Detailed explanation-3: -About Antimicrobial Resistance. 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-4: -Bacteria can acquire antibiotic resistance genes from other bacteria in several ways. By undergoing a simple mating process called “conjugation, ” bacteria can transfer genetic material, including genes encoding resistance to antibiotics (found on plasmids and transposons) from one bacterium to another.

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