which one is formed first, hnRNA or mRNA?

[mellow shard]

1. which one is formed first, hnRNA or mRNA
2. when do we call RNA hnRNA or mRNA,
3. which one forms inside nucleus , or both r formed inside nucleus ?
   AND
4. ARE hnRNA and mRNA the same ?
5. cuz heterogenous nuclear rna is just which has both exons n introns so its called heterogenous?
   ain't it?
6. can i say codon is the same thing as hnRNA?

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[dusk aspen]

Okay, for 1., just remember the steps of DNA transcription/translation.

For 2., same thing.

For 3., remember where pre-mRNA is formed and where mRNA is when post-transcriptional modifications are finished.

4. It depends. You determine when.
5. Yes, that is a correct statement.
6. No. Recall the definition of a codon.

[mellow shard]

pre mrna: nucleus, n mRNA is formed in the nucleus n transported in the cytoplasm laster after splicing

codon is a present on mRNA

hmm

[mellow shard]

didnt get the 4th point, i assume u mean they have the same fate i.e. protein so i can say they r the same ? okay

[dusk aspen]

Yes.

[dusk aspen]

3 consecutive base pairs, rather.

[dusk aspen]

In the steps of transcription/translation, where do they become the same?

[mellow shard]

they aren't the same ever

[dusk aspen]

Not really.

[mellow shard]

the only similarity i can think of is, hnRNA and mRNA come under the process of transcription

[mellow shard]

structurally they hv differences , thats what i thought of there,hnrna has both introns n exons and mrna has only exons

[dusk aspen]

Yes, so when splicing occurs, what happens to hnRNA?

[mellow shard]

introns r removed, exons left, amino acid sequence is left, n idk what it's called, pre mRNA?

[dusk aspen]

Yes. So after post-transcriptional modifications, hnRNA becomes mRNA.

That’s what I mean.

[mellow shard]

ohhhkayy

[mellow shard]

thankyou!

[mellow shard]

wait, so the answer to 4th ques is no, hnRNA n mRNA r different

+close

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@mellow shard

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