AP BIOLOGY

EVOLUTION

EVOLUTION OF A POPULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In recent years “SuperBugs” (bacteria that aren’t effected by antibiotics) are becoming more and more common. How could natural selection explain this?
A
Superbugs survive antibiotics and reproduce
B
Antibiotics cause bacteria to become superbugs
C
We have always had the same amount of superbugs; modern media just discusses them more.
D
There is no reliable data on the origin of super bugs.
Explanation: 

Detailed explanation-1: -Certain actions may step up the appearance and spread of antimicrobial-resistant germs, such as: Using or misusing antibiotics. Having poor infection prevention and control practices. Living or working in unclean conditions.

Detailed explanation-2: -The spread of antibiotic resistance in pathogenic bacteria is a simple and elegant example of evolutionary adaptation by natural selection. Bacteria can become resistant to antibiotics through mutations that alter the cellular targets of antibiotics or by acquiring dedicated resistance genes from other bacteria.

Detailed explanation-3: -Superbugs are caused by the misuse of antibiotics. When antibiotics are overused or misused, the bacteria that have caused the disease in question are overexposed and produce mutations in an attempt to survive.

Detailed explanation-4: -Mutations can result in antibiotic resistance in bacteria. Resistant bacteria survive antibiotic treatment and can increase in numbers by natural selection.

There is 1 question to complete.