NEET BIOLOGY

GENETICS AND EVOLUTION

INHERITANCE AND VARIATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Over the last 30 years some antibiotics have become less effective in treating bacterial infection. What is the reason for this?
A
artificial selection
B
asexual reproduction
C
more effective new antibiotics
D
natural selection
Explanation: 

Detailed explanation-1: -Antibiotic resistance occurs when bacteria change in response to the use of these medicines. Bacteria, not humans or animals, become antibiotic-resistant. These bacteria may infect humans and animals, and the infections they cause are harder to treat than those caused by non-resistant bacteria.

Detailed explanation-2: -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.

Detailed explanation-3: -The overuse of antibiotics makes resistant bacteria more common. The more we use antibiotics, the more chances bacteria have to become resistant to them. This means that antibiotics won’t work when we need them in the future.

Detailed explanation-4: -Taking antibiotics too often or for the wrong reasons can change bacteria so much that antibiotics don’t work against them. This is called bacterial resistance or antibiotic resistance. Some bacteria are now resistant to even the most powerful antibiotics available. Antibiotic resistance is a growing problem.

There is 1 question to complete.