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प्रश्न
Very Short Answer Question:
Why the genetic code is considered as commaless?
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उत्तर
Genetic code is regarded as commaless because the triplet codons are organised one after the other on the m-RNA molecule without any gaps, punctuation marks, or spaces.
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संबंधित प्रश्न
Long Answer Question:
Justify the statement. If the answer is false, change the underlined word(s) to make the statement true
The process of translation occurs at the ribosome.
Define mutation. State its two types.
Draw a neat and labelled diagram of transcription and processing of hn-RNA
Changes in the nucleotide of gene : Mutation : : Changes in the place of ribosome : __________
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.
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?
Sequential order of nucleotides on template strand forming m-RNA synthesizing specific protein is given below. Based on it select the sequential t-RNA anticodon entering in the process of protein synthesis.
Template: TAC GAC AAC CAC TTA ATT
Which of the following is transcribed and then translated to form a protein product?
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.
