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Why is it essential that tRNA binds to b...

Why is it essential that tRNA binds to both an amino acid and an mRNA codon during protein synthesis?

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The tRNA is an adaptor molecule, which is meant for transferring amino acid to ribosomes for synthesis of polypetides. The tRNAs carry specific amino acids at particular points during polypeptide synthesis as per codons of mRNA, and the codons are recognized by anticodons of tRNAs.
Thus, the coded information from DNA is translated by bringing amino acids in a particular sequence.
An mRNA strand has a series of codons out of which three are given below:
(i) AUG (ii) UUU
(iii) UAG
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OSWAAL PUBLICATION-MOLECULAR BASIS OF INHERITANCE -TOPIC-2: Short Answer Type Question- I
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  5. Give an account of mRNA.

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  6. Differentiate between Exons and Introns.

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  7. How is a polypeptide chain synthesis terminated during protein synthes...

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  8. What are structural genes? Name the three structural genes present in ...

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  9. What do you understand by UTR ? Mention its role in translation.

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  10. Enumerate the goals of human genome project.

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  11. Three codons on mRNA are not recognized by transfer RNA. What are they...

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  12. Why is it essential that tRNA binds to both an amino acid and an mRNA ...

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  13. What will these DNA codons be translated into TAC, AAA, ATC? (b) Wh...

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  15. Draw the structure of the initiator tRNA adaptor molecule.

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  16. Why is tRNA called an adaptor molecule?

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  17. One of the codons on mRNA is AUG. Draw the structure of tRNA adaptor m...

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  18. Explain the dual function of AUG codon. Give the sequence of bases it ...

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  19. How can DNA segments, separated by gel electrophoresis, be visualized ...

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  20. What is satellite DNA in a genome ? Explain their role in DNA fingerpr...

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