Question

Given below are two statements: 
• [Statement (I):] The first amino acid in protein synthesis is Methionine in Eubacteria. 
• [Statement (II):] The first amino acid in protein synthesis is N-formyl-methionine in Archaea. 
In light of the above statements, choose the most appropriate answer from the options given below. 
 

• A. Both Statement (I) and Statement (II) are correct.
• B. Both Statement (I) and Statement (II) are incorrect.
• C. Statement (I) is correct but Statement (II) is incorrect.
• D. Statement (I) is incorrect but Statement (II) is correct.

Hint:

Remember the initiation differences across the domains of life:
- Eubacteria: Uses N-formylmethionine (fMet) as the first amino acid.
- Archaea and Eukaryotes: Use unmodified Methionine (Met) as the first amino acid.
This biochemical difference is often used as evidence of the evolutionary relationship between Archaea and Eukaryotes.

Answer 1

The Correct Option is B