This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Translation, Subject name: Biochemistry
Which one of the following is a tyrosine tRNA analogue that causes premature chain termination? 
Select and explain. 
A. Cycloheximide, B. Puromycin, C. Paromomycin, D. Erythromycin
B: Puromycin
Answer: B: Puromycin 
Explanation: Puromycin Structural analogue of tyrosinyl tRNA. Incorporated into nascent protein chains by a nonhydrolyzable peptide bond. Growing of the peptide bond is inhibited. Inhibits protein synthesis in both prokaryotes and eukaryotes Causes premature chain termination