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Ierofanga [76]
3 years ago
5

The bacterium Staphylococcus aureus is commonly found in the nasal cavity of healthy people. If inhaled into the lungs, however,

it may cause pneumonia. Staphylococcus aureus is best described as___________
1) transient microbiota.
2) a parasite.
3) a mutualist symbiotic partner.
4) resident microbiota.
5) both resident microbiota and opportunistic pathogen.
Biology
1 answer:
Dmitriy789 [7]3 years ago
6 0

Answer:

The correct answer is option 5) "both resident microbiota and opportunistic pathogen".

Explanation:

Resident microbiota are considered all the bacteria that is within the human body of healthy people. Since Staphylococcus aureus is found at the nasal cavity of healthy people is considered part of the resident microbiota. Staphylococcus aureus is also an opportunistic pathogen, because it takes advantage of an unusual opportunity to infect. This opportunity could be to be inhaled into the lungs, or that its host gets immunologically repressed.

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Levart [38]

Answer;

A bottleneck effect


Explanation;

When only a few individuals survive unfavorable times, thereby losing the majority of genotypes in the next generation, it is called a bottleneck effect.

It occurs when there is a disaster of some sort that reduces a population to a small handful, which rarely represents the actual genetic makeup of the initial population.

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5 0
1 year ago
D) During Transcription, a nucleotide has been deleted. Explain the effect this will have
valkas [14]

Answer:

this mutation may change the open reading frame of the resulting RNA sequence and its final product, which is a protein in the case that this gene is used to synthesize a messenger RNA (mRNA) sequence

Explanation:

During the transcription, a region of DNA named 'gene' is used as template to produce an RNA molecule, typically a primary transcript of mRNA (pre-mRNA). Subsequently, this pre-mRNA suffers a process named RNA processing in order to generate a mature mRNA which is finally used to create a protein by a process called translation. If a deletion occurs during transcription, it may change the open reading frame (ORF) of the resulting mRNA when the mutation occurs in an exon of the protein-coding gene (i.e., occurs a frameshift mutation), while this deletion may not have any effect if it is localized within the introns which are removed during RNA processing. A frameshift mutation will change the amino acids that are added to the nascent polypeptide chain during translation.

7 0
2 years ago
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irinina [24]

Answer:

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8 0
3 years ago
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