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Slav-nsk [51]
3 years ago
11

In the microarray analysis some genes, such as ERB-B2 and ESR1, have been found to be associated with particular disease or cond

itions such as cancer. Other genes, such as the ABC-B2 gene, are not associated with a disease but are involved in resistance to certain drugs or treatments. Why would it be useful to test for the expression of genes like the ABC-B2 gene on the microarray
Biology
1 answer:
liubo4ka [24]3 years ago
5 0

Answer:

The expression of genes associated with drug resistance leads to the reduction in the effectiveness of drugs against cancer cells.

Explanation:

In cancer, drug resistance is produced when oncogenic cells are able to develop mechanisms of resistance against drugs such as, for example, chemotherapeutic agents. In these cases, therapeutic treatments become ineffective to fight against cancer cells and tumor progression. In consequence, it is imperative to trace the expression of target oncogenes associated with drug resistance in order to provide effective treatments to eliminate cancer cells.

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A scientist raised a species of fruit flies over several generations in separate containers. The diagram shows what
White raven [17]

Answer:

This is allopatric speciation. The organisms were separated from each other by the containers. The separation caused them to evolve to the point that they were more likely to mate with each other than with a member of another tank.

Explanation:

4 0
3 years ago
5. Explain how selection might be different if there were brown grasshoppers in
Semenov [28]

Answer:

Explanation:

Selection breeding is use to identify individual with good physical characteristics that can be used as parent in next generation. Brown, yellow, green grasshoppers are the distinct phenotypic characteristics of an individual hence selection will be individual base. Such that brown individual will be selected, green selected seperated and yellow will also selected. The organism that shows the best fits are often been selected depending on the objects of the selection

7 0
3 years ago
In the peppered moth scenarios what is the variation? And the selection?
Morgarella [4.7K]

Variation is number of alleles for the wing color of the peppered moths. The wing color ranges from pure white to pure back.

Selection pressure is predation by birds.

Explanation:

In the wake of the industrial revolution, white-winged peppered moths had a large allelic frequency in the population compared to black-winged peppered moths. However, when the environment changed due to soot produced by industries (making the environment darker) white-winged peppered moths reduced while that of black moths increased.

This is because black moths were able to blend in and camouflage in the dark environment than white-winged peppered moths that stood out to their predators. Black moths, therefore, had an increased chance of reaching adulthood and passing their genes to the next generation. This increased the allelic frequency of black-winged peppered while that of white-winged moths reduced in the population.

Learn More:

For more on natural selection of peppered moths check out;

brainly.com/question/12918325

brainly.com/question/9231156

#LearnWithBrainly

8 0
3 years ago
The term for the mental process of sorting out, interpreting, analyzing, and integrating stimuli from the sense organs and brain
Korvikt [17]
The answer to this question is "PERCEPTION". The term refers to the mental capacity that process of sorting out things, interpreting things mentally, analyzing things and conditions, and integrating stimuli from the sense organs and from the brain and later come up in a concrete and the sensible result after mental processing.
5 0
3 years ago
Explain how the circulatory system is able to transport the blood under high pressure from the heart to the rest of the body
expeople1 [14]

Transport of blood under high pressure is done through the concerted efforts of the heart and arteries.

<h2>The circulatory system is the network of the heart, arteries, veins, and capillaries responsible for the movement of blood around the body.</h2>

Transporting blood under high pressure can be explained in the following steps:

  1. Contraction of the heart ventricles creates blood under high pressure
  2. High pressured blood is removed from the heart through the arteries. In addition, the arteries are able to contract and expand, thus are elastic
  3. The lumen of the arteries is narrow thus helping in maintaining high pressure

As a result of the above, the high pressure of blood is maintained and transported to the extremities of the body.

To learn more about the circulatory system see: brainly.com/question/3305440?referrer=searchResults

SPJ12

6 0
1 year ago
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