Q. Introns were first discovered in __________

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Q. Adenovirus is a useful model of studying gene expression because __________

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Q. Mouse β – globin gene has __________ introns.

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Q. The amount of exon in the eukaryotic genome is higher than that of the introns.

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Q. The mRNA of which eukaryotic protein lacks introns?

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Q. Introns are nothing more than genetic load in the eukaryotic genome.

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Q. Presence of introns facilitates the formation of several different mRNAs, thus increasing protein yield of different types but from same gene.

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Q. How many pre – rRNA transcript in eukaryotes are used to produce all the different mature rRNAs?

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Q. In bacterial cell the 3 rRNAs 23S, 16S and 5S are derived from different transcripts.

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Q. Which one of the following rRNA undergoes least post-transcriptional processing?

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Q. The bacterial pre – rRNA undergo __________ cleavage.

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Q. Which of the following types of processing is not used to prepare mature rRNA?

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Q. Each tRNA is produced from different transcripts.

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Q. The pre – tRNA involves cleavage by __________

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Q. RNase P is a ribozyme.

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Q. The common sequence for all tRNAs at their 3’ end is __________

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Q. The 3’ CCA terminus is exceptionally added by the RNA polymerase during transcription.

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Q. Though unusual, pre – tRNA also undergo splicing. It is achieved by the help of __________

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Q. The transcription starts with a purine that ends with a __________

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Q. The enzyme used for capping mRNA is a __________

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