The poly-A tail is a modified guanine nucleotide that tells a ribosome where to attach when translation begins.

Name: The poly-A tail is a modified guanine nucleotide that tells a ribosome where to attach when translation begins.
Brand: Quizplus
Rating: 4.8 (53 reviews)

Question

Quizplus · Accepted Answer

The poly-A tail is not a modified guanine nucleotide, it is a sequence of adenine nucleotides added to the end of mRNA which helps in stabilizing the mRNA and promoting its translation. The ribosome attaches to the 5' end of the mRNA, not the poly-A tail.

The Poly-A Tail Is a Modified Guanine Nucleotide That Tells