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प्रश्न
How t-RNA act as an adapter molecule?
Explain in detail with the help of a diagram.
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उत्तर
Transfer RNAs are known as adapter molecules in protein synthesis because they are covalently linked to an amino acid at one end and they pair with the mRNA in such a way that amino acids are joined to a growing polypeptide in the correct sequence.
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संबंधित प्रश्न
Attempt any TWO of the following:
Define the terms ‘codon’ and ‘anticodon’.
Enlist the characteristics of genetic code.
Short Answer Question:
In the figure below A, B and C are three types of ______.
Give scientific reason.
Some of the characters of parents are seen in their offspring.
Exon part of mRNAs codes for ______
____________ refers to removal of introns and joining the exons in a defined order in a transcription unit.
Study the following statements and select the correct option.
Statement A: The primary transcript produced in eukaryote is translated without undergoing any modification or processing.
Statement B: The hnRNA in humans has exons and introns.
______ catalyzes polymerization in 5' → 3' direction during transcription.
______ refers to the portion of gene which is transcribed but not translated.
Given below is a stretch of DNA showing the coding strand of a structural gene of a transcription unit?
5’-ATG ACC GTA TTT TCT GTA GTG CCC GTA CTT CAG GCA TAA-3’
- Write the corresponding template strand and the mRNA strand that will be transcribed, along with its polarity.
- If GUA of the transcribed mRNA is an intron, depict the sequence involved in the formation of mRNA/the mature processed hnRNA strand.
i. In a bacterium
ii. In humans - Upon translation, how many amino acids will the resulting polypeptide have? Justify.
