Answer to Question #57828 in Cell Biology for tracy guido

Question

which of the following characteristics of ribozymes provide support to the RNA world hypothesis
Select all that apply
made of RNA
involved in protein synthesis
contain deoxyribose
are polypeptides
are catalysts

Answer 1

Correct answers:
1. Made of RNA
2. Involved in protein synthesis
3. Are catalysts

The first biological molecules were RNAs. They could self-replicate and produce the required molecules. Thus, RNA nature and catalytic abilities of ribosomes support the RNA world hypothesis. Soon, relatively unstable RNA molecules managed to encode proteins, which could support them better. Participation of ribosomes in protein synthesis could be related with that ancient event.