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liraira [26]
3 years ago
12

Sickle-cell disease is caused by a single mutation in the DNA of a particular gene. A person with this disease has red levels, b

lood clots, and strokes. This is an example of___________________.
A. codominance.
B. a multifactorial trait.
C. pleiotropy.
D. incomplete dominance.
E. polygenic inheritance.
Biology
1 answer:
enot [183]3 years ago
4 0

Answer:

The correct answer is option C. "pleiotropy".

Explanation:

Pleiotropy is a characteristic that defines a gene that is responsible for the development of multiple traits, which often seem to be unrelated. Sickle-cell disease is an example of a disease caused by the mutation of a pleiotropic gene, resulting in the person developing red levels, blood clots, and strokes. Other example is the disease phenylketonuria, at which the affected person suffers from a mental disorder and reduced hair and skin pigmentation by a single mutation in a single gene on chromosome 12.

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The question offers an image containing information regarding the patient by the name of Anita and her actions prior to arriving at the hospital.

We can describe the patient and her timeline up to her hospital visit by mentioning information about her:

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The patient in question is a 108 pound, 36-year-old female by the name of Anita Martin. The patient is indicated to be a security guard. As per the information given, the patient seems to have been working a night shift in a building in the vicinity of a recent train wreck that seems to have released chlorine gas. On her way to her car, Anita was exposed to chlorine gas, due to which she decided to drive to the hospital.

With this information, we will have properly described the patient in question so that the medical professionals at the hospital will have all the information necessary to proceed with an effective treatment plan for Anita's condition.

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3 0
2 years ago
the size difference between most multicellular hosts and their pathogens results in which of the following evolutionary advantag
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Pathogens can adapt more quickly than hosts since they have higher populations and faster generation periods.

Pathogens, of course, have the advantage in this evolutionary game because they can change far more quickly than the hosts—especially in long-lived animals like humans—due to their high population numbers and rapid generation rates. The relationship between surface area and complement activation shows how bacterial pathogenicity may be influenced by tiny size. The region of the microbial surface may also have a role in their action since other antimicrobial agents are focused there. A pathogen reacts with the host and creates infection, which results in the host being ill. Any dangerous microbial agent, including bacteria, viruses, protozoa, fungi, and helminths, might be considered a pathogen.

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vampirchik [111]

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Speciation is usually caused by geographic isolation.

Geographic isolation occurs when a population of the same species is separated by some type of natural barrier, such as rivers or mountains. This causes the population to be divided in two and begin to face different environments and different environmental conditions. This causes each part of the population to adapt in different ways, leaving them so different from one another that it is no longer possible to say that the two populations belong to the same species.

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