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प्रश्न
(i) Name the scientist who suggested that the genetic code should be made of a combination of three nucleotides.
(ii) Explain the basis on which he arrived at this conclusion.
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उत्तर
(i) George Gamow suggested that the genetic code should be made up of a combination of three nucleotides.
(ii) He proposed that if 20 amino acids are to be coded by 4 bases, then the code should be made up of three nucleotides. 43 = 64 (42 = 16), which is less than 20. So, the codon was proposed to be triplet.
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संबंधित प्रश्न
Name the enzyme responsible for the transcription of tRNA and the amino acid the initiator tRNA gets linked with.
How is Prokaryotic Transcription process different in eukaryotes?
What are introns?
Transcription is the transfer of genetic code from a DNA molecule to:
(i) RNA molecule
(ii) Second DNA molecule
(iii) Ribosomal sub unit·
(iv) Sequence of amino acids in a protein molecule
Name the parts marked ‘A’ and ‘B’ in the given transcription unit:
The process of transfer of genetic information from DNA to RNA/formation of RNA from DNA is ______.
Which is not involved in protein synthesis?
The process of copying genetic information from one strand of DNA to RNA is termed as ______.
In a cell, DNA transcription is halted when ______
Read the following and answer from given below:
The translation is the process of polymerization of amino acids to form a polypeptide. The order and sequence of amino acids are defined by the sequence bases in the mRNA. The amino acids are joined by a bond called a peptide bond. The ribosome is the site of protein synthesis.
Which ion is essential for the association of both units of the ribosome at the time of protein formation?
