Question

When two proteins share a considerable degree of sequence identity throughout the sequence alignment, they are least likely to share the same function.

(a) True

(b) False

I had been asked this question in an online quiz.

The doubt is from Prediction of Gene Function Based on a Composite Analysis topic in division Genome Analysis of Bioinformatics

Answer 1

Correct choice is (b) False

To explain I would say: In the mentioned case they are more likely to share the same function. A considerable fraction of a genome may encode proteins whose function may not be identified in this manner because the proteins are not related to another of known function.