The 3’- OH end of the branch point A makes the attack in splicing of an intron.(a) True(b) FalseI had been asked this question by my college director while I was bunking the class.My doubt is from Post-Transcriptional Modification in portion Gene Expression : Transcription Prokaryotes of Cytogenetics

The 3’- OH end of the branch point A makes the attack in splicing of

1.	The 3’- OH end of the branch point A makes the attack in splicing of an intron.(a) True(b) FalseI had been asked this question by my college director while I was bunking the class.My doubt is from Post-Transcriptional Modification in portion Gene Expression : Transcription Prokaryotes of Cytogenetics
Answer» The correct OPTION is (b) False The EXPLANATION: The 2’-OH of A base is seen to make this attack on the 5’ end of the intron at the phosphodiester bond while the original 3’-OH end of the A is STILL in the bonding with the PHOSPHATE. This makes a lariat structure.

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