Eukaryotic messenger RNA can undergo post synthetic processing after transcripti

Question

Eukaryotic messenger RNA can undergo post synthetic processing after transcription and before translation. One of the processing steps is splicing, where portions of the RNA are removed and the remaining RNA joined together. Sort theolowing statements regarding mRNA splicing as true or false. True statements False statements Small RNA's in the splicesome recognize the 5' and 3' splice site sequences. Splicing occurs after the mRNA enters the cytoplasm, but before it binds to the ribosome. In splicing, exon sequences are removed from the mRNA in the form of lariats, and are degraded. Splicing occurs while the mRNA is attached to the spliceosome. One mRNA can sometimes code for more than one protein by splicing at alternative sites

Explanation / Answer

Solution :-

True statements -

- splicing occurs while the mRNA is attached to spliceosome.

- small RNAs in the spliceosome recognise the 5' and 3' splice sites

- one mRNA can code for more than one protein by splicing at alternative sites.

False statements

- in splicing, exon sequences are removed in the form of lariat formation and are degraded.

- splicing occurs after it enters the cytoplasm but before it binds to the ribosome.

Related Questions

Navigate

• Browse (All)
• Browse E
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.