How are transfusion reactions type II responses? What happens in a transfusion reaction?

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Answer 1

Answer:

Answer:

Explained

Explanation:

Type II response can be defined as an antibody-dependent process in which specific antibodies bind to antigens and results in tissue damage. Transfusion reaction is a type II response because here the mismatched RBC's are rapidly destroyed by specific preformed antibodies (anti-ABO or -Rh) and complement.

Transfusion reactions takes place when incompatible blood products are transfused into a patient's circulation. This triggers the patient's immune system and consequently donor RBC's are destroyed by antibodies in the recipient's circulation. This is usually seen when antigen-positive donor RBC's are transfused into a patient who has preformed antibodies to that antigen.

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From the laboratory exercise, match the plant group to the plant examined. [8 pt] Miniature Parlor Palm Coleus Blue Rabbit’s Foot Fern Geranium Foxtail Fern Tree Fern Boston Fern Spider Plant A. angiosperm (monocot) B. angiosperm (monocot) C. pterophyte (fern) D. angiosperm (eudicot) E. angiosperm (eudicot) F. pterophyte (fern) G. angiosperm (monocot) H. angiosperm (monocot)

What was an unintended negative environmental consequence of improved technology in agriculture?A. Farmers went bankrupt purchasing expensive equipment.
B. Modern technology allowed for larger expanses of land to become cultivated, so farming took over many natural areas that were important for wildlife
C. Machines took away jobs commonly performed by farm workers
D. Machines diminished the quality of the crops.

Answers

The correct answer is B. Modern technology allowed for larger expanses of land to become cultivated, so farming took over many natural areas that were important for wildlife.

Explanation:

In the last decades, the creation of agricultural technology has increased the efficiency of growing crops. This means now, all the process is more efficient, which leads to more products to be sold and an increase in profit. However, the possibility of large scale agriculture has caused more land is used for this purpose. This often implies natural ecosystems such as forests are destroyed and the land of these ecosystems, which is usually rich in minerals, is used for extensive agriculture. This is a negative consequence of agricultural technology as natural areas important for wildlife are taken for human profit.

Answer:

Explanation:

Penn Foster

Genral Science

Page 14

True or False: All viruses look the same. А True B False

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Answer:

B False

Explanation:

Answer: False

It is not true

Explain Okazaki fragments as applied in DNA replication

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Answer: Okazaki fragments are short sequences of DNA nucleotides (approximately 150 to 200 base pairs long in eukaryotes) which are synthesized discontinuously and later linked together by the enzyme DNA ligase to create the lagging strand during DNA replication.

Explanation:

Hope it helps you if not sorry

How would the environment impact a multifactorial trait like height in someone with normal genetic variation? How would environment impact someone with a mutation that results in dwarfism?

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Answer:

Explanation:

On someone with a normal genetic variation, the environment helps them adapt and pushes for the evolution of the traits that will help that species increase their chances of survival in future generations. This includes traits such as height, thus increasing this trait so that the species is able to reach food in higher places or reach higher places in order to find shelter. This does not have the same effect when dealing with a certain genetic mutation such as dwarfism since the mutation targets a specific value for these traits and is not affected by its environment.

Final answer:

The environment can influence height in individuals with normal genetic variation through factors such as nutrition and exercise. However, the impact of the environment on someone with a mutation leading to dwarfism is less significant.

Explanation:

The environment can impact a multifactorial trait like height in someone with normal genetic variation through factors such as nutrition, exercise, and overall health. For example, a well-nourished individual who engages in regular physical activity may reach their full potential height. On the other hand, an environment with inadequate nutrition or limited access to healthcare could lead to stunted growth and shorter height.

In the case of someone with a mutation resulting in dwarfism, the impact of the environment may be less significant. Dwarfism is primarily caused by genetic mutations that affect the production of growth hormone. While environmental factors can still influence overall health and well-being, they are unlikely to significantly alter the person's height.

Therefore, the environment plays a more prominent role in affecting height in individuals with normal genetic variation compared to those with a specific genetic mutation causing dwarfism.

Learn more about environment here:

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Keeping in mind the life cycle of bacteriophages, consider the following problem: During the reproductive cycle of a temperate bacteriophage, the viral DNA inserts into the bacterial chromosome where the resultant prophage behaves much like a Trojan horse. It can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. Several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. Insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. As stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?

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Romans and the Trojan war

How can gardeners and farmers add nutrients to soil? (Select all that apply.)A. adding fertilizer to the soil
B. watering the soil
C. adding compost to the soil
D. heating the soil

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Answer:

A. and B.

Explanation:

Answer:

A and b

Explanation:

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Plants use carbohydrates to build things such as cellulose. How do plants acquire these building blocks to build mass?a. They absorb carbohydrates through the soil.b. They absorb dissolved carbohydrates via water.c. They make carbohydrates through the process of photosynthesis.d. They make carbohydrates through the process of cellular respiration.

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Research Problem: You come across three new species of primates that all cohabitate the same forested area. No one has looked at the behavior of these monkeys before so there is lot to discover about each species. You and a fellow researcher are interested in describing the diet of each of these species (Do they eat fruits? Leaves? Insects? Tree-sap? A combination of sorts?). Your fellow researcher has determined that her hypothesis is that two of the monkeys primarily eat fruit, while one of the monkey species eats tree sap.