Multiple choice

Proteins which are different in peptide sequence but have a similar structure in the process of evolution are said to be:

  1. Convergent

  2. Divergent

  3. Opportunistic

  4. Incidental

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A Correct answer
Explanation

Proteins that have different amino acid sequences (primary structure) but similar three-dimensional structures and often similar functions due to evolutionary pressures are said to show convergent evolution at the structural level. This is different from divergent evolution where homologous proteins evolve from a common ancestor.