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Kamila [148]
3 years ago
5

How do some of non-resistant bacteria become antibiotic-resistant

Biology
1 answer:
Margarita [4]3 years ago
7 0

When an antibiotic is given for a non- resistant bacteria it inactivates or kills the bacteria however some microbes do not die and survive and multiply and pass the infection to other people making the bacteria antibiotic resistant.

Explanation:

The antibiotic resistant bacteria are those that are able to resist the effect of antibiotic and renders them ineffective that was once able to kill or inactivate bacteria.

While antibiotic non-resistant bacteria are those that are not able to resist the effect of antibody.

The reason some non-resistant bacteria becomes resistant is that a mutation in the nonresistant bacteria may occur or continuous exposure of the antibiotic would make it resistant to it.

Every time an antibiotic is taken for some bacterial infection it kills the bacteria but some that survive become resistant and grow in numbers and get transfer to other people causing them to be antibiotic resistance. The infection transfer to other people would not be treated by once used antibiotic as the microbe has become resistant.

During the cell replication due to some mutation caused they get resistant to antibiotic by a process called selective  pressure.

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Duchenne Muscular Dystrophy (DMD) is an X-linked recessive trait that causes muscular weakness, deterioration of muscle tissue,
Ronch [10]

Answer:

The correct answer is - XDXd and XD Y

Explanation:

Sex-linked disorders are the disorders that are expressed only when there is two copy of the mutated allele or have not masked by the dominant allele of the gene. In DMD, the dominant allele is XD and the mutated allele is Xd. To express it there are the following genotype possible-

in women XdXd, and in men XdY, so these two genotypes are not possible for the parents in this case. If a mutated allele is present with the dominant allele it will be considered as carrier women but diseased will not be found in them.

So the correct genotype would be

mother: XDXd ( a carrier woman)

father : XDY (normal man)

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3 years ago
Speculate on how higher sea-surface temperatures (sst) might impact earth's greenhouse effect.
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The SST or sea surface temperature refers to the temperature of the water close to the surface of the ocean. Sea surface temperature influences the behavior of the atmosphere of the Earth, so their initialization into the atmospheric model is essential. While SST plays a vital role for tropical cyclogenesis, it is also essential in predicting the formation of sea breezes and sea fog.  

The changes in SST reflects the overall trend of warming of the climatic system, and in turn, affects the climate and weather patterns globally. If the SST is too warm, the humidity upsurges and the greenhouse effect enhances.  


6 0
4 years ago
Which of the following factors would affect population distribution but not size in a given country
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Answer:

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Explanation:

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the correct would be d your welcome

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