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With regard to mature mRNA in eukaryotes...

With regard to mature mRNA in eukaryotes

A

exons and introns do not appear in the mature RNA

B

exons appear but introns do not apper in the mature RNA

C

introns appear but exons do not apper in the mature RNA

D

both exons. And introns appear in the mature RNA

Text Solution

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The correct Answer is:
D
In eukaryotes, the monocistronic structural genes have interrupted coding sequences i.e., the genes in eukaryotes are split. The coding sequences or expressed sequences are defined as exons.
These sequences (exons ) appear in mature or processed RNA. THe exons are interrupted by introns or intervening sequences which do not appear in mature or processed RNA.
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Which of the following is correct about mature RNA in eukaryotes?

Which of the following is correct about mature RNA in eukaryotes?

The mRNa of prokaryotes is

(a) Describe the process of transcription in bacteria. (b) Explain the processing the hnRNA needs to undergo before becoming functional mRNA in eukaryotes.

Explain the process of making heterogamous nuclear RNA (hn RNA) into a fully functional mRNA in eukaryotes. Where does this process occur in the cell?

State the role of transposons in silencing of mRNA in eukaryotic cells.

Assertion : Polycistronic mRNA, found in prokaryotes, specify a number of polypeptides. Reason : Monocistronic mRNA, found in eukaryotes, specify only a single polypeptide.

(a) Name a genetic RNA and a non-genetic RNA. (b) Differentiate between prokaryotic mRNA and eukaryotic mRNA on the basis of any one character.

Assertion (A) Transcription unit is often monocistronic in eukaryotes and polycistronic in prokaryotes Reason ( R ) Exons do not appear in mature RNA, introns appear is mature RNA.

NCERT EXEMPLAR-MOLECULAR BASIS INHERITANCE -Molecular Basis Inheritance
  1. One of the following is true with respect to AUG

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  2. The first genetic material could be

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  3. With regard to mature mRNA in eukaryotes

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  4. The human chromosome with the highest and least number of gens in the...

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  5. Who amongst the following scientists had no contribution in the deve...

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  6. DNA is a polymer of nucleotides which are linked to each other by 3'-5...

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  7. Discontinuous synthesis of DNA occurs in one strand, because

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  8. Which of the following steps in transcription is catalysed by RNA poly...

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  9. Control of gene experssion takes place at the level of

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  10. Regulatory proteins are the accessory proteins that interact with RNA ...

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  11. Which was the last human chromosome to be completely sequenced ?

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  12. Which of the following are the functions of RNA

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  13. While analysing the DNA of an organism a total number of 5386 nucleoti...

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  14. In some viruses, DNA is synthesised by using RNA as template . Such a ...

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  15. If Meselson and Stahl's experiment is continued for four generations i...

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  16. If the sequence of nitrogen bases of the coding strand of DNA in a tra...

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  17. The RNA polymerase holoenzyme transcribes

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  18. If the base sequence of a codon in mRNA is 5'-AUG-3', the sequence of ...

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  19. The amino acid attaches to the tRNA at its

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  20. To initiate translation, the mRNA first binds to

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