TLS Online TPP Program

#Question id: 3855


In eukaryotes, which of the following modifications is made to a primary transcript prior to its transport out of the nucleus?

#Part-A Aptitude & General Biotechnology
  1. poly(A) tails added to the 3' end 

  2. 7-methyl guanosine caps added to the 5' end

  3. exon sequences, when present, are spliced out 

  4. all of these