RNA Polymerase: Formation, Functions, Characteristics

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In summary, RNA polymerase is an enzyme that catalyzes the formation of messenger RNAs. It can participate in mRNA formation multiple times and is found in the nuclei of cells. It does not inhibit mRNA production and increases the kinetic energy of its substrates.
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Homework Statement


An enzyme called "RNA polymerase" catalyzes the formation of messenger RNAs. Therefore, we know that each RNA polymerase molecule:

Homework Equations


a.could be classified as a nucleic acid.
b.can participate in mRNA formation multiple times.
c.is found only in the cytoplasm of cells.
d.inhibits mRNA production
e.increases the kinetic energy of its substrates.


The Attempt at a Solution


I know it doesn't inhibit mRNA prodcution and its found in the nuclei not the cytoplasm i think the anwser is it can participate in mRNA formation mutiple times but I'm not sure
 
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b is correct for sure. That's the way enzymes work, in a twisted way that's half a definition of a catalyst in general.
 

1. What is RNA Polymerase?

RNA Polymerase is an enzyme that plays a critical role in the process of transcription, which is the first step in gene expression. It is responsible for reading the DNA sequence and creating a complementary RNA copy, which is then used to produce proteins.

2. How is RNA Polymerase formed?

RNA Polymerase is formed through the transcription of a gene by another enzyme called RNA Primase. RNA Primase creates a short RNA sequence, known as a primer, which serves as a starting point for RNA Polymerase to bind and begin transcription.

3. What are the functions of RNA Polymerase?

The main function of RNA Polymerase is to transcribe the genetic information encoded in DNA into RNA. It also helps to initiate the process of translation, where the RNA is used to produce proteins. Additionally, RNA Polymerase plays a role in regulating gene expression by binding to specific DNA sequences and controlling the rate of transcription.

4. What are the characteristics of RNA Polymerase?

RNA Polymerase is a large and complex enzyme that is composed of multiple subunits. It is highly specific and can only bind to certain DNA sequences. It also requires the presence of other proteins, known as transcription factors, to properly function. Additionally, RNA Polymerase is capable of proofreading its work and correcting any errors in the RNA sequence.

5. How does RNA Polymerase differ from DNA Polymerase?

RNA Polymerase and DNA Polymerase are both enzymes involved in genetic processes, but they have some key differences. RNA Polymerase is responsible for producing RNA copies of DNA, while DNA Polymerase is responsible for replicating DNA during cell division. Additionally, RNA Polymerase can bind to DNA at any point, while DNA Polymerase can only bind at the 3' end of the growing strand. RNA Polymerase also does not require a primer, unlike DNA Polymerase.

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