The 3' Poly-A tail is attached to Naim 21:31 Heredity Meiosis Molecular Genetics The 3' Poly-A tail is attached to a. the Poly-A polymerase enzyme. b. the mRNA. c. the tRNA. d. the coding strand of the DNA molecule. e. the template strand of the DNA molecule. Answer: B Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+