Post-Transcriptional Processing and Introns/Exons Quiz
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Questions and Answers

What is post-transcriptional processing?

Post-transcriptional processing is a series of modifications that occur to RNA molecules after they have been transcribed from DNA.

What are split genes in eukaryotic organisms?

Split genes are genes that contain introns, which are non-coding sequences of DNA, and exons, which are coding sequences of DNA.

What are introns and exons in split genes?

Introns are non-coding sequences of DNA, while exons are coding sequences of DNA.

What is RNA splicing?

<p>RNA splicing is the process of removing introns and joining exons together to form a mature mRNA molecule.</p> Signup and view all the answers

What is the name of the complex responsible for carrying out RNA splicing?

<p>The spliceosome is responsible for carrying out RNA splicing.</p> Signup and view all the answers

What is alternative splicing?

<p>Alternative splicing is a process by which a single gene can be transcribed into multiple different mRNA molecules, each of which encodes a different protein.</p> Signup and view all the answers

How does alternative splicing occur?

<p>Alternative splicing occurs when different exons are included or excluded from the mature mRNA molecule.</p> Signup and view all the answers

What is polyadenylation?

<p>Polyadenylation is the process of adding a polyadenylate tail to the 3' end of an mRNA molecule.</p> Signup and view all the answers

What is the function of the polyadenylate tail added during polyadenylation?

<p>The polyadenylate tail helps to stabilize the mRNA molecule and protect it from degradation.</p> Signup and view all the answers

What is capping in the context of RNA processing?

<p>Capping is the process of adding a 7-methylguanosine cap to the 5' end of an mRNA molecule.</p> Signup and view all the answers

What are the essential functions of capping in RNA processing?

<p>Capping helps in the stability and efficient translation of mRNA molecules.</p> Signup and view all the answers

What is post-transcriptional processing?

<p>Post-transcriptional processing is a series of modifications that occur to RNA molecules after they have been transcribed from DNA.</p> Signup and view all the answers

What are split genes and what do they contain?

<p>Split genes are genes that contain introns, which are non-coding sequences of DNA, and exons, which are coding sequences of DNA.</p> Signup and view all the answers

What is the process of RNA splicing?

<p>RNA splicing is the process of removing introns and joining exons together to form a mature mRNA molecule.</p> Signup and view all the answers

What is the name of the complex that carries out RNA splicing?

<p>The spliceosome is the large complex of proteins and RNA molecules that carries out RNA splicing.</p> Signup and view all the answers

What is alternative splicing and how does it occur?

<p>Alternative splicing is a process by which a single gene can be transcribed into multiple different mRNA molecules, each of which encodes a different protein. It occurs when different exons are included or excluded from the mature mRNA molecule.</p> Signup and view all the answers

What is polyadenylation?

<p>Polyadenylation is the process of adding a polyadenylate tail to the 3' end of an mRNA molecule.</p> Signup and view all the answers

What is the purpose of the polyadenylate tail?

<p>The polyadenylate tail helps to stabilize the mRNA molecule and protect it from degradation.</p> Signup and view all the answers

What is capping in the context of RNA processing?

<p>Capping is the process of adding a 7-methylguanosine cap to the 5' end of an mRNA molecule.</p> Signup and view all the answers

What are exons and introns in the context of split genes?

<p>Exons are the coding sequences of DNA, while introns are the non-coding sequences of DNA within split genes.</p> Signup and view all the answers

What is the function of introns in split genes?

<p>Introns are removed from the primary transcript during RNA splicing.</p> Signup and view all the answers

How does alternative splicing contribute to protein diversity?

<p>Alternative splicing allows a single gene to produce multiple different mRNA molecules, each of which can encode a different protein, thereby increasing protein diversity.</p> Signup and view all the answers

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