OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Beneficial mutations have deceased, resulting in a larger population than normal.
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Only the genes for antibiotic resistance are now expressed, eliminating other genes.
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More antibiotic-resistant bacteria have survived, resulting in more offspring with this trait.
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The bacteria have become genetically isolated, resulting in decreased reproductive rates.
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Detailed explanation-1: -The main cause of antibiotic resistance is antibiotic use. When we use antibiotics, some bacteria die but resistant bacteria can survive and even multiply. The overuse of antibiotics makes resistant bacteria more common. The more we use antibiotics, the more chances bacteria have to become resistant to them.
Detailed explanation-2: -The overuse of antibiotics in recent years means they’re becoming less effective and has led to the emergence of “superbugs". These are strains of bacteria that have developed resistance to many different types of antibiotics, including: MRSA (methicillin-resistant Staphylococcus aureus)
Detailed explanation-3: -Which statement best describes the phenomenon of antibiotic resistance in bacteria? Resistance can be partial or total, and resistance to each antibiotic is a separate trait.