'RNA is transcribed and translated in the cytoplasm', 'transcription produces an mRNA ready for translation' and 'RNA is proofread for errors' occur in prokaryotes, whereas '5′ cap, 3' poly-(A) tail and RNA splicing' occur in eukaryotes.
The prokaryotic cells (e.g., bacterial cells) do not contain cell nuclei, thereby the messenger RNA (mRNA) must be transcribed and translated in the cytoplasm.
During prokaryotic transcription, the RNA transcript is proofread for errors. In bacteria, DNA polymerases proofread the transcript by using their 3’ → 5’ exonuclease activity.
In eukaryotic cells, RNA processing consists of several mechanisms:
- A 7-methylguanosine cap (5′ cap) is added to the 5′ end of the precursor messenger RNA (pre-mRNA).
- A 3' poly-Adenine (A) tail is added to the 3' end of the pre-mRNA.
- Both the 5′ cap and 3' poly-(A) tail protect the RNA transcript from its degradation by exonucleases.
- Eukaryotic RNA splicing consists of the removal of non-coding regions called 'introns' and subsequent splicing of the protein-coding regions called 'exons'.
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Temp causes water to rise or sink through convection, and salinity affects the density of the water, so higher salinity water will contribute to deep water currents
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Answer:
Yes, I do. And yes it does, when I feel I am like somebody else, I have dreams that I am in that person's perspective.
Explanation:
Let's say I'm feeling like someone named....Elijah... Well I go to bed that night and have dreams that I am Elijah talking to myself.
Answer:
Chloroplasts
Explanation:
The chloroplast is a double membrane-bound organelle that has chlorophyll pigment and serves as a site for photosynthesis. Root cells carry out the function of absorption of water and minerals from the soil. They do not perform photosynthesis. Hence, leaf cells have more chloroplasts than the root cells.
