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List two essential roles of ribosome dur...

List two essential roles of ribosome during translation.

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Charged tRNA shifts to ribosome for initiation of polypeptide chain. Ribosome is the site where protein systhesis occurs. Ribosome also act as a catalyst (23S RNA in bacteria with enzyme ribozyme) for the formation of peptide bond. During elongation of polypeptide chain, new peptide bond is formed between the amino acides whose tRNAs are located on A and P sites of ribosomes.
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MODERN PUBLICATION-MOLECULAR BASIS OF INHERITANCE -REVISION EXERCISES (SHORT ANSWER TYPE -I QUESTIONS )
  1. Results of famous experiment given in the figure. Answer the question:...

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  2. Read carefully sequence of codons in the mRNA unit and answer the ques...

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  3. List two essential roles of ribosome during translation.

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  4. Differentiate between template strand and coding strand.

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  5. Decribe the structure of a nucleosome.

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  6. Define nucleosome.

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  7. List two essential roles of ribosome during translation.

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  8. Examine the diagram of mRNA given below. Mark the 5’ and 3' ends of th...

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  9. What do you mean by central forces?

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  10. What is genetic code? Give its two characteristics.

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  11. Give three differences between DNA and RNA.

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  12. Draw a neat diagrammatic structure of a molecular model of DNA propose...

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  13. A double stranded DNA molecule has 20% of cytosine. Using Chargaff's l...

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  14. Certain molecular processes are given in column (A). Provide the terms...

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  15. Read the sequence of the nucleotides in the given segment of mRNA and ...

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  16. (a) Expand hnRNA. (b) Name the enzyme that transcribes it. (c) It ...

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  17. Given below is a sequence of steps of transcription in a eukaryotic ce...

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  18. Draw a schematic diagram of a part of double stranded dinucleotide DNA...

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  19. Discuss in detail how RNA can be used to silence specific genes? Hin...

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

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