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Likurg_2 [28]
3 years ago
14

E. coli is a species of bacteria that causes many different infections in humans. Certain E. coli strains have developed resista

nce to antibiotics, making infections with these strains difficult to treat. How do bacteria such as E. coli, which reproduce asexually, gain new traits such as antibiotic resistance?
A. by adapting to changes in environmental conditions without undergoing changes in their DNA
B. by mutating their DNA in response to environmental conditions to gain beneficial traits
C. by producing offspring with new gene assortments from genetic recombination, which increases diversity in a population
D. by undergoing spontaneous mutations when they replicate, which increases genetic variation in a population
Biology
2 answers:
Nastasia [14]3 years ago
8 0

Answer:

The correct answer will be option-B

Explanation:

Antibiotic resistance in bacteria develops in response to the environment in which the bacteria survives.  

The antimicrobial resistance trait is acquired by any species of bacteria through one of the two ways that are either by making changes in their DNA sequences or through horizontal gene transfer mechanisms.

In the given E. coli gained the trait to develop resistance against antibiotic by making changes in their DNA as once the gene is altered or mutated, the trait can be passed on to the offsprings.

Thus, Option-B is the correct answer.

mixer [17]3 years ago
3 0

B. By mutating their DNA in response to environmental conditions to gain beneficial traits.

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a cell in a plant that is composed of a cell wall and multiple organelles, like a huge vacuole and chloroplasts that carry out photosyntheses. They are the building blocks for plants.

Explanation:

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Which of these requires a host cell to copy its genetic material and protein coat?
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which part of the brain plays a key role in forming and storing the implicit memories created by classical conditioning?
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The part of the brain which plays a key role in forming and storing the implicit memories created by classical conditioning is the Cerebellum.

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The brain is subdivided into 3 parts:

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