Question

The longer the poly a tail in general the longer a messenger RNA will survive in the cytoplasm true or false 

Answer 1

True. The poly(A) tail at the 3' end of messenger RNA (mRNA) protects it from degradation by exonucleases and helps to promote mRNA stability and translation efficiency in the cytoplasm. The longer the poly(A) tail, the more protection it provides and the longer the mRNA will survive.