Question

Ribozymes were discovered by:

• A. Thomas Cech and colleagues
• B. David Baltimore
• C. Howard Temin
• D. Paul Zamecnik and colleagues

Hint:

Ribozymes: catalytic RNA.
Discovered by Thomas Cech (1980s).
Nobel Prize in Chemistry 1989.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Ribozymes are RNA molecules with catalytic activity.
They were discovered by specific scientists.

Step 2: Key Formula or Approach:
No specific formula.
Need to know the discovery of ribozymes.

Step 3: Detailed Explanation:
Ribozymes were discovered by Thomas Cech and colleagues.
They discovered self-splicing RNA in Tetrahymena.
David Baltimore and Howard Temin discovered reverse transcriptase.
Paul Zamecnik worked on protein synthesis.
Thus, Cech discovered ribozymes.

Step 4: Final Answer:
Ribozymes were discovered by Thomas Cech and colleagues.
Hence, the correct option is (A).