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प्रश्न
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?
उत्तर
Functional mRNA of structural genes need not always include all of its exons. This alternate splicing of exons is sex-specific, tissue-specific, and even developmental stage-specific. By such alternate splicing of exons, a single gene may encode for several isoproteins and/or proteins of similar class. In absence of such a kind of splicing, there should have been new genes for every protein/isoprotein. Such an extravagancy has been avoided in natural phenomena by way of altemate splicing.
APPEARS IN
संबंधित प्रश्न
State the difference between the structural genes in a Transcription Unit of Prokaryotes and Eukaryotes.
Explain (in one or two lines) the function of the following:
tRNA
Explain (in one or two lines) the function of the following:
Exons
In split genes, the coding sequence are called ______.
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 term gene was coined by ______.
Gene is:
The functional unit of DNA molecule that codes for particular gene product is ______.
Exons help in synthesis of ______.
Define a cistron. Giving examples differentiate between monocistronic and polycistronic transcription unit.
