Question

Which statement concerning protein structures is most likely RIGHT?

A. Most cytosolic globular proteins display hydrophobic amino acids on their surface.
B. Proteins showing sequence homology may have similar functions.
C. All proteins have quaternary structures.
D. The three dimensional structure of a protein is determined by its interactions with molecular chaperones.

Answer 1

Proteins with similar sequences may have similar functions. Option b.

Step-by-step explanation:

The statement B. Proteins showing sequence homology may have similar functions is most likely right.

Proteins with similar sequences are likely to have similar functions because the sequence of amino acids determines the protein's shape and structure, which in turn determines its function. For example, enzymes with similar sequences are likely to have similar catalytic activities.

However, it is important to note that proteins with similar sequences may also have different functions depending on their cellular context.

Therefore, statement B is correct because proteins showing sequence homology can have similar functions.