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प्रश्न
What is degeneracy of genetic code?
Explain when is a genetic code said to be degerate.
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उत्तर
Usually, the single amino acid is encoded by a single codon. However, some amino acids are encoded by more than one codon. e.g. Cysteine has two codons, while isoleucine has three codons. This is called the degeneracy of the code. Degeneracy of the code is explained by the Wobble hypothesis. Here, the first two bases in different codons are identical but the third one varies.
संबंधित प्रश्न
Describe the process of transcription in protein synthesis.
Long Answer Question:
Justify the statement. If the answer is false, change the underlined word(s) to make the statement true
The DNA molecule is double-stranded and the RNA molecule is single-stranded.
Identify the strand of DNA which acts as a template during transcription.
Identify the INCORRECT match.
The sequence of nucleotides AUGCUUCUC indicates that it is a segment of ____________.
Which property of genetic code is specified by the following statement?
The two triplet codons UUU and UUC specify the same amino acid, i.e. phenylalanine.
Select the INCORRECT statement - ______
Select the correct statement from the following.
Select the correct match from the following.
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.
