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प्रश्न
Define Translocation.
उत्तर
The movement of the ribosome from one end of the mRNA to the other end by the distance of one triplet codon during translation is known as translocation.
संबंधित प्रश्न
What is Anticodon?
Attempt any TWO of the following:
Define the terms ‘codon’ and ‘anticodon’.
Sketch and label the ‘clover leaf model’ of t-RNA.
The enzyme required for transcription is _______.
Describe the process of transcription in protein synthesis.
Long Answer Question:
Describe the process of translation in protein synthesis.
Find out the double ring compound.
Exon segments are reunited after splicing by
What is the role of Mg++ in Translation?
Draw a neat and labelled diagram of transcription and processing of hn-RNA
Identify the strand of DNA which acts as a template during transcription.
Read the following statements and select the correct option.
- Structural genes in eukaryotes have interrupted non-coding sequences known as exons.
- The coding sequences or express sequences are defined as introns.
From the following which one is NOT needed in formation of polypeptide chain?
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.
Identify the condition under which there will be no change in the reading frame of following mRNA.
5' AACAGCGGUGCUAUU 3'
Identify the INCORRECT match.
In the genetic dictionary, there are 64 codons as ______
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.
Genetic code consists of ______.
For which of the following reasons genetic code is universal?
Which of the following represents the central dogma of molecular biology?
____________ is the initiation codon.
______ refers to the portion of gene which is transcribed but not translated.
Identify the CORRECT statements.
- Conversion of hnRNA to mRNA - Processing
- Removal of introns and joining of exons - Splicing
- Methyl adenosine triphosphate is added to 5'-end of hnRNA- Capping
- Addition of adenylate residues to 5' end in a template-dependent manner - Tailing
Which one ofthe following shows clover leaf model?
Which one of the following codons will NOT pair with Anticodon of t-RNA?
Which one of the following is NOT essential for synthesis of protein in a normal cell?
In a eukaryotic transcription and translation take place ______.
Initiation of polypeptide chain in protein synthesis is induced by:
Which of the following is transcribed and then translated to form a protein product?
Answer the following questions :
What is transcription?
Describe the process of transcription.
Protein synthesis occurs in ______.
Complete the above-given diagram of a transcription unit.
Which events show the beginning of translocation?
During the post transcriptional modification, ______ process does not occur.
If the base sequence in DNA is 5' AAAA 3', then the base sequence in nillNA is______.
Name the anticodon of the tRNA that carries the above amino acid.
