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Why hnRNA' is required to undergo splici...

Why hnRNA' is required to undergo splicing

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hn RNA contains transcripts both from exons and introns and is nonfunctional. It undergoes a process of splicing where the introns are removed and exons are joined in a definite order to make it functional.
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Mention the two addition processing which hnRNA needs to undergo after splicing so as to become functional.

Why does hnRNA to undergo splicing ? Where does splicing occur in the cell ?

(i) Name the enzyme that catalyses the transcription of hnRNA. (ii) Why does the hnRNA need to undergo changes ? List the changes hnRNA undergoes and where in the cell such changes take place.

(i) Name the enzyme that catalysis the transcription of hnRNA. (ii) Why does the hnRNA need to undergo changes? (iii) List the changes hnRNA undergoes and where in the cell such changes take place?

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ICSE-MOLECULAR BASIS OF INHERITANCE-PRACTICE QUESTIONS (VERY SHORT ANSWER TYPE QUESTIONS
  1. Name the initiation codon for protein synthesis. Name the amino acid i...

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  2. What is the function of amino-acyl-tRNA synthetase?

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  3. What is the function of ligase?

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  4. Name the process in which the unwanted mRNA regions are removed and th...

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  5. Mention the role of DNA polymerase other than polymerising deoxyribonu...

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  6. What is nucleosome?

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  7. Give chemical name for thymine.

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  8. Name the technique used in making copies of a specific segment of DNA

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  9. Due to an error during transcription, ATG of DNA formed UAG in mRNA. W...

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  10. While an mRNA strand is being translated in the ribosome subunit, the ...

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  11. Name the components ‘a’ and ‘b’ in the nucleotide with a purine below

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  12. Name the technique used for separating DNA fragments in the laboratory...

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  13. Why hnRNA' is required to undergo splicing

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  14. Mention the two addition processing which hnRNA needs to undergo after...

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  15. Mention two functions of the codon AUG.

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  16. Why is the enzyme cellulose used for isolating genetic material from p...

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  17. How is the action of exonuclease different from that of endonuclease ?

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  18. Give one word - One codon codes for only one amino acid. The genetic c...

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  19. Name the positively charged proteins around which the negatively charg...

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  20. Name the two basic amino acids that provide positive charges to histon...

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