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प्रश्न
Define mutation. State its two types.
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उत्तर
- Definition:
The mutation is a phenomenon in which sudden change in the DNA sequence takes place which results in the change of genotype and ultimately variation in the phenotype. - Types of mutations:
- Point mutations
- Frameshift mutation or deletion mutation.
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संबंधित प्रश्न
Enlist the characteristics of genetic code.
How t-RNA act as an adapter molecule?
Explain in detail with the help of a diagram.
Study the following sentences and select the correct option.
- Addition of one or two bases changes the combination of sequence in codons.
- Addition or deletion of single nucleotide changes the reading frame.
- The reading frame beyond the point of insertion of three bases remains unaltered.
For which of the following reasons genetic code is universal?
From the following identify the INCORRECT match.
The mRNA AUGCAGAUACGC recognizes four amino acids and this character of the code referred to as ____________.
Identify the nucleotide sequence of the mRNA which codes for the sequence of amino acids 'Met-Leu- Val- Arg- Ala'.
Polyribosomes are ______
Which one is a cell-coded protein formed in response to infection with most animal viruses:
Which of the following is transcribed and then translated to form a protein product?
