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Montano1993 [528]
4 years ago
5

A 31-year-old woman is taking methotrexate (rheumatrex) to treat rheumatoid arthritis. which information from the patient's heal

th history is important for the nurse to report to the health care provider about the methotrexate?
Biology
1 answer:
Mamont248 [21]4 years ago
3 0
The information from the patient's health history is important for the hurse to report to the health care provider about the methotrexate is that the Methotrexate is teratogenic, and the patient should be taking contraceptives during methotrexate therapy. The other information will not impact the choice of methotrexate as therapy.
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The existence of introns in mRNA-encoding genes seems to be a problem because so much cellular energy goes into splicing them ou
Svetllana [295]

Answer:

In normal conditions, introns serve following functions in the body of an organism:

1) They contain genes of miRNA which are known as Mirtrons, reverse transcriptase, endonucleases, transposase etc.

2) It is because of presence of introns that alternative splicing of mRNA is possible. The sex determination in drosophila is based on alternative splicing.

Apart from this, alternative splicing can be useful and beneficial in an unforeseen situation such as an environmental problem which is faced by the organism for the first time.

Explanation:

Alternative splicing is an important mechanism because with the help of alternative splicing different type of proteins can be synthesized from the same pre mRNA transcript. In case suddenly the surrounding environment of an organism is changed and the environmental conditions have become extremely harsh due to which organism's life is at stake, in such situation organism may make a different type of protein through alternative splicing which can help the organism in survival.  

Default splicing in Drosophila leads to the development of male off-spring while female off-spring is produced as a result of alternative splicing.  

8 0
3 years ago
You extract DNA from some of your cells and cut out the complete human growth hormone gene directly from this DNA. You put this
Mars2501 [29]

Answer:

A) Bacteria cannot carry out RNA splicing to remove introns and so produced a much larger protein.

Explanation:

Human is a eukaryote and has both introns and exons in its genes. Transcription of human genes forms a primary transcript that undergoes post-transcriptional modification.

One of the important even during the post-transcriptional modification is the removal of introns and joining the exons together to make a mature mRNA which in turn serves as the template for protein synthesis.

<em>E. coli</em> is a prokaryote and does not have the enzymatic machinery required for the splicing of introns.

Cloning of a complete human gene into the <em>E. coli</em> cells would not form the respective human protein since the bacterial cells would not be able to splice the introns from the primary transcript.

7 0
3 years ago
Need help...<br><br><br> Describe two problems a plant might encounter during reproduction
antiseptic1488 [7]

Answer:

During reproduction plant might experience absence of pollinators or presence of low temperature

Explanation:

Following can be the problems a plant might encounter during reproduction

  1. Presence of Low temperature for long time: Due to presence of low temperature during the reproduction of plants for long period of time it will break its dormancy and freeze the blossom or developing fruit
  2. Absence of pollinators: As e know pollinators play a vital role in reproduction. In the absence of Pollinators (i.e., beans) plants are not able to exchange the nectar carrying  
4 0
3 years ago
In general, in which direction do convection cells in earth atmosphere move heat ariund the planet
Romashka-Z-Leto [24]
I believe the answer to your question is C, correct me if i'm wrong :)
3 0
3 years ago
An example of a geologic feature on the floor of the Atlantic Ocean is a
lakkis [162]
Plate tectonics and the ocean floor. ... Where plates are pulled away (diverge) from each other molten magma flows upward between the plates forming mid-ocean ridges, underwater volcanoes, hydrothermal vents, and new ocean floor crust. The Mid-Atlantic Ridge, is an example of this type of plate boundary.
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4 years ago
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