Podcast
Questions and Answers
Which molecule is believed to have been the original information-storage molecule in the earliest forms of life on Earth?
Which molecule is believed to have been the original information-storage molecule in the earliest forms of life on Earth?
- RNA (correct)
- DNA
- Protein
- Enzyme
What is the term used to describe the hypothesis that RNA was the original information-storage molecule in early life?
What is the term used to describe the hypothesis that RNA was the original information-storage molecule in early life?
- DNA world hypothesis
- RNA world hypothesis (correct)
- Protein world hypothesis
- Enzyme world hypothesis
What is one of the key cellular processes in which RNA is involved?
What is one of the key cellular processes in which RNA is involved?
- DNA replication (correct)
- Photosynthesis
- Respiration
- Cell division
What remarkable property does RNA share with DNA?
What remarkable property does RNA share with DNA?
Who conducted experiments to show how RNA could have evolved the ability to catalyze a simple reaction?
Who conducted experiments to show how RNA could have evolved the ability to catalyze a simple reaction?
Which molecule was isolated and tested for its ability to catalyze reactions in the experiment described in the text?
Which molecule was isolated and tested for its ability to catalyze reactions in the experiment described in the text?
What happened to the RNA molecules that functioned best in each round of the experiment?
What happened to the RNA molecules that functioned best in each round of the experiment?
How did the efficiency of the RNA catalysts change with each generation in the experiment?
How did the efficiency of the RNA catalysts change with each generation in the experiment?
What is the main reason why many scientists believe RNA played a key role in the origin of life?
What is the main reason why many scientists believe RNA played a key role in the origin of life?
Why do cells now use DNA for information storage and processing?
Why do cells now use DNA for information storage and processing?
