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प्रश्न
Define mutation.
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उत्तर
A sudden change that occurs in the nucleotide sequence of a gene, causing either a minor or considerable change in the characters of an individual is known as mutation.
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संबंधित प्रश्न
Attempt any TWO of the following:
Define the terms ‘codon’ and ‘anticodon’.
From the following identify the features of "Genetic code".
(i) It is a triplet or three letter code.
(ii) The code is overlapping.
(iii) The code is commaless.
(iv) The genetic code was deciphered by Watson and Crick.
In mRNA strand having specific number of codons, if the 23rd codon UUA is replaced by UAA, what will be the change found in synthesized polypeptide chain?
____________ refers to removal of introns and joining the exons in a defined order in a transcription unit.
Identify the nucleotide sequence of the mRNA which codes for the sequence of amino acids 'Met-Leu- Val- Arg- Ala'.
The enzyme initiating the formation of mRNA is ______
Which one of the following is NOT a structural part of a transcription unit in DNA?
Which one of the following is not applicable to RNA?
If the base sequence in DNA is 5' AAAA 3', then the base sequence in nillNA is______.
Give the different steps involved in formation of m-RNA from hn-RNA.
