21
Question
Development of drug resistance in bacteria supports which theory of evolution?
Development of drug resistance in bacteria supports which theory of evolution?
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Solution
The correct option is B Theory of natural selection
Darwin proposed the theory of natural selection. According to him, every organism has a tendency to produce more offspring than actually that can survive. This leads to competition and development of variations in the offspring. Favourable variations (characters that help the organism to face the environment successfully) will be transmitted to the next generation and they will establish whereas the other ones will die or be eliminated from the environment.
Humans use antibiotics to kill the disease causing bacteria. When a bacterial population encounters an antibiotic, bacteria sensitive to disease will die whereas few bacteria resistant to the antibiotic will survive. This is an example of natural selection because nature here favours the resistant ones to transmit this character to the offspring and it will result in the production of an entire antibiotic resistant bacterial population.
Industrial melanism is an example of the theory of natural selection. After the industrial revolution, the tree trunks were covered with soot and dust. This resulted in more dark peppered (Biston carbonaria) moths than light coloured peppered moths (Biston betularia) as they were able to hide efficiently from predators in the dark background.
Theory of abiogenesis or spontaneous generation was proposed by the old Greek philosopher Aristotle. According to this theory, living beings can be formed spontaneously from lifeless matters like rug, mud, etc.
Theory of special creation was proposed by Father Suarez. He proposed that diversity was the same since creation by the supernatural power and will be the same in future.
Darwin proposed the theory of natural selection. According to him, every organism has a tendency to produce more offspring than actually that can survive. This leads to competition and development of variations in the offspring. Favourable variations (characters that help the organism to face the environment successfully) will be transmitted to the next generation and they will establish whereas the other ones will die or be eliminated from the environment.
Humans use antibiotics to kill the disease causing bacteria. When a bacterial population encounters an antibiotic, bacteria sensitive to disease will die whereas few bacteria resistant to the antibiotic will survive. This is an example of natural selection because nature here favours the resistant ones to transmit this character to the offspring and it will result in the production of an entire antibiotic resistant bacterial population.
Industrial melanism is an example of the theory of natural selection. After the industrial revolution, the tree trunks were covered with soot and dust. This resulted in more dark peppered (Biston carbonaria) moths than light coloured peppered moths (Biston betularia) as they were able to hide efficiently from predators in the dark background.
Theory of abiogenesis or spontaneous generation was proposed by the old Greek philosopher Aristotle. According to this theory, living beings can be formed spontaneously from lifeless matters like rug, mud, etc.
Theory of special creation was proposed by Father Suarez. He proposed that diversity was the same since creation by the supernatural power and will be the same in future.
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