Q166 / 200 · NEET 2002 · Zoology

Which of the following reunites the exon segments after RNA splicing?

  • A
    RNA polymerase
  • B
    RNA primase
  • Correct answer
    C
    RNA ligase
  • D
    RNA proteases

Solution

RNA polymerase enzyme catalyses the synthesis of RNA. It is single in prokaryotes. There are three types of RNA polymerases in eukaryotes-I for 28S, 18S and 5.8S RNA, II for mRNA and snRNA and III for tRNA, 5SRNA and ScRNA. Primase is an RNA polymerase that is used to initiate DNA synthesis. RNA ligase reunites the exon segment after RNA splicing. So, correct answer is RNA ligase

Hence, the correct answer is option: 'C'.

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