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प्रश्न
Explain in short.
Transcription
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उत्तर
- Transcription is the process of synthesis of mRNA from DNA. It takes place in the presence of RNA polymerase.
- During transcription, mRNA is produced as per the sequence of nucleotides present on the DNA.
- This mRNA sequence is always complementary to the DNA strand that is used for its synthesis.
- The thymine in DNA molecule is replaced by uracil in RNA, during the process of transcription.
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संबंधित प्रश्न
What is Anticodon?
What is 'RNA'?
Explain different types of non-genetic RNA with diagrams and functions.
Attempt any TWO of the following:
Define the terms ‘codon’ and ‘anticodon’.
Find out the double ring compound.
What is meant by the activation of amino acids?
Draw a neat and labelled diagram of transcription and processing of hn-RNA
Which process is shown in the following diagram?
Which process is shown in the diagram given below?
Define mutation.
Which genetic disorders are caused by mutation?
Explain in short.
Mutation
In following case what will be the corresponding sequence of the transcribed mRNA?
AGGTATCGCAT is a sequence from the coding strand of a gene.
____________ refers to the process of copying of genetic information from one (template) strand of DNA into a single stranded RNA transcript.
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.
During transcription in prokaryotes, the enzyme RNA polymerase recognizes the promotor by its ______.
Primary transcript is non-functional and contains ______.
Which one of the following is NOT essential for synthesis of protein in a normal cell?
Which one is a cell-coded protein formed in response to infection with most animal viruses:
Methyl guanosine triphosphate is a ______.
