Question

Which one of the following statements is TRUE about eukaryotic cells?

• A. Cycloheximide blocks elongation during translation
• B. Formulated ERNA is necessary for initiation of translation
• C. A single mRNA specifies for more than one gene product
• D. Erythyromycin inhibits elongation during translation

Answer 1

The correct option is A Cycloheximide blocks elongation during translation

Cycloheximide is a naturally occurring fungicide produced by the bacterium $Streptomyces$ $griseus$. Cycloheximide exerts its effects by interfering with the translocation step in protein synthesis (movement of two tRNA molecules and mRNA in relation to the ribosome), thus blocking eukaryotic translational elongation.

So the correct answer is option A.