A mRNA molecule left the nucleus and was degraded. What most likely did not occur before it left the nucleus? 3’-cap and 5'-poly(A) tail were not added No splicing occurred 5'-cap and 3'-poly(A) tail were not added Exons and not introns were spliced out
Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
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A mRNA molecule left the nucleus and was degraded. What most likely did not occur before it left the nucleus?
3’-cap and 5'-poly(A) tail were not added
No splicing occurred
5'-cap and 3'-poly(A) tail were not added
Exons and not introns were spliced out
The mRNA is produced after transcription of the DNA sequence in the nucleus.
This RNA is quite unstable thus it goes through some more process before translation (synthesis of polypeptide chain on ribosomes outside nucleus).
These processes are capping, tailing and splicing.
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