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Igoryamba
3 years ago
10

A friend was recently diagnosed with strep throat. One week after his treatment, he redeveloped the infection. In conversation,

your friend tells you, "I must have become immune to the drug the doctor gave me!"
a. Discuss the validity of your friend's statement, providing evidence in support of or refuting his claim.

b. After further conversation, your friend tells you that he stopped taking his initial antibiotics after 2 days because he "felt 100% better." Explain how this action might have played a role in the redevelopment of his infection.
Biology
1 answer:
sasho [114]3 years ago
4 0

Answer:

<h2>Antibiotic resistance had become very common now a days. People develop antibiotic resistance if they do not take antibiotics according to the prescription by the physician. </h2>

Explanation:

a. Actually the statement given by the friend is absolutely correct. The person has developed a resistance against the antibiotic he had taken to treat the strep throat. The infection has redeveloped and when he had the same antibiotic for strep throat it will become ineffective.

b. This happens because he had stopped taken the complete course of the antibiotic as prescribed by the doctor. If the bacteria changes its shape or removes the effectiveness of the particular antibiotic, resistance develops. The infection has redeveloped may be due to any change in the bacteria or ineffectiveness of the particular drug.

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Highly contagious or transmissible disease and has the potential for very rapid spread irrespective of national borders, causing
butalik [34]

Answer:

Transboundary

Explanation:

Transboundary refers to a highly contagious disease that has the potential to spread extremely rapid irrespective of national boundary. They cause high mobility and motility in the susceptible animals. An example of such diseases include Avian Influenza and the African Swine flu.

Zoonotic disease is disease that can be transmitted from animals to Humans example anthrax.

Exotic disease refers to a disease that does not normally occur in a particular region

Emerging diseases are those that have recently appeared and are cases are rapidly increasing.

Epizootic are those that appear in a large number of animals in the same place at the same time

7 0
3 years ago
explain how complete dominance, co dominance, incomplete dominance, and sex linked traits are inherited and expressed differentl
dlinn [17]
<span> COMPLETE DOMINANCE:
</span>
<span>Mendel concluded that some alleles are dominant and others are recessive. When one dominant allele is present, it's enough to make the recessive allele unexpressed (this is what happens in heterozygous individuals). In other words, it 'hides' or masks the recessive allele.

CO-DOMINANCE:

-a condition in which both alleles are dominant.
</span>
There are alleles that have the capacity of dominating at the same time, and when an organism is heterozygotic, both alleles are expressed.
For example, a white chicken(WW) crossed with a black chicken (BB):  100% of the offspring being WB. With this genotype, they have black feathers and white feathers.
It's not a blend of colors, but a case where both are expressing.

INCOMPLETE DOMINANCE:
-a condition with none of the alleles is dominant or recessive, so the traits blend in the phenotype.

Some alleles are not completely dominant, and when that's the case the phenotype of a heterozygous organism will be a mix between the phenotypes of its homozygous parents.

For example:
plant 1: RR -red
plant 2: rr- white

By crossing this plants we will obtain 100%  of the offspring with a color mix: pink.(genotype: Rr)
Red and white are not completely dominating so it results in a blend of colors.

SEX LINKED TRAITS

Sex chromosomes contain genes that determine the sex of a person. Two X chromosomes result in a female and one X plus a Y result in a male.

In those chromosomes, there are genes specific for each gender, and in those chromosomes, there are genes that code for certain traits- the sex-linked traits.
These traits will be inherited according to the sex chromosomes they receive from their parents.









5 0
3 years ago
Scientist use data from Gregor Mendel‘s studies to conclude that information about traits is passed from parents to offspring th
vaieri [72.5K]

The correct answer is genes.  

A trait refers to the feature like size or color, which is passed from the parents and is inherited by the offspring. The genes control traits and come in pairs, that is, one gene from each parent.  

The transmission of hereditary traits possesses its molecular framework in the accurate DNA replication. This generates gene copies, which can be transmitted to the offspring from the parents. In plants and animals, the reproductive cells known as gametes are the mediators, which transfer genes from one generation to the next.  


3 0
3 years ago
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To which group of organic compounds does testosterone belong
andreyandreev [35.5K]

Answer:

17beta-hydroxy steroid

Explanation:

7 0
2 years ago
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A population of squirrels lives in a mature forest in Virginia's Great Dismal Swamp. After a hurricane, 90% of the oak trees are
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The correct answer is B since it shows a decline.
But why put the answer ? Lol
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