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Question
Explain (in one or two lines) the function of the following:
Exons
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Solution
DNA in eukaryotes is a mosaic of exons and introns. Exons are coding sequences in DNA that are both transcribed and translated.
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RELATED QUESTIONS
What is a cistron?
State the difference between the structural genes in a Transcription Unit of Prokaryotes and Eukaryotes.
The correct sequence of gene expression is:
- Formation of the primary transcript
- Regulation of splicing
- Transport of mRNA from the nucleus to the cytoplasm
- Translation
The transcription unit is represented in the diagram given below.
Identify site (i), factor (ii), and Enzyme (iii) responsible for carrying out the process.
Gene is:
The functional unit of DNA molecule that codes for particular gene product is ______.
Exons help in synthesis of ______.
The equivalent of a structural gene is ______
Define a cistron. Giving examples differentiate between monocistronic and polycistronic transcription unit.
Do you think that the alternate splicing of exons may enable a structural gene to code for several isoproteins from one and the same gene? If yes, how? If not, why so?
Frequency of recombination between gene pairs on same chromosome as a measure of the distance between genes to map their position on chromosome, was used for the first time by ______.
A transcription unit is defined by three structural regions. Which of the following correctly lists these three regions in their proper order from 5' to 3' on the coding strand?
Which DNA sequence element is found at the 5' end of a transcription unit and serves as the binding site for RNA polymerase?
Which DNA sequence element is located at the 3' end of a transcription unit and signals the termination of transcription?
What is the primary function of the Structural Gene within a transcription unit?
The Template Strand is also known by which alternative names?
Which strand has a polarity of 3' → 5' and serves as the actual template for RNA synthesis?
The Coding Strand is also known by which alternative names?
What is the relationship between the Coding Strand sequence and the mRNA sequence produced during transcription?
With respect to which strand are all coordinates such as 'upstream' and 'downstream' defined in a transcription unit?
Which organism type typically produces Polycistronic mRNA?
Define Introns in the context of eukaryotic split genes.
In the context of a transcription unit, how do the Promoter and Terminator work together to regulate the transcription process?
