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प्रश्न
- Name the scientist who suggested that the genetic code should be made of a combination of three nucleotides.
- Explain the basis on which he arrived at this conclusion.
Name the scientist who suggested that the genetic code should be made of a combination of three nucleotides. Explain the basis on which he arrived at this conclusion.
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उत्तर
- George Gamow suggested that the genetic code should be made up of a combination of three nucleotides.
- 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 a triplet.
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संबंधित प्रश्न
Following are the features of genetic codes. What does each one indicate?
Stop codon; Unambiguous codon; Degenerate codon; Universal codon.
Describe the process of transcription in bacteria
How do m-RNA, t-RNA and ribosomes help in the process of translation?
Explain the process of transcription in prokaryotes.
State the aim and describe Messelson and Stahl’s experiment.
Briefly describe the following:
Transcription
How is Prokaryotic Transcription process different in eukaryotes?
Initiation codon of protein synthesis in Eukaryotes is ______.
Which of the following is the correct sequence of event with reference to the central dogma?
Name the parts marked ‘A’ and ‘B’ in the given transcription unit:
DNA template sequence of CTGATAGC is transcribed over mRNA as ______.
Which is not involved in protein synthesis?
If the sequence of bases in DNA is ATTCGATG, then the sequence of bases in its transcript will be ______.
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?
Match List I with List II.
| List I | List II |
| A. RNA polymerase III | I. snRNPs |
| B. Termination of transcription | II. Promotor |
| C. Splicing of Exons | III. Rho factor |
| D. TATA box | IV. SnRNAs, tRNA |
Choose the correct answer from the options given below:
In the processing of hnRNA in eukaryotic cell, the primary transcripts are processed in the following sequence.
