Question

Which of the given statements is incorrect?

(a) Proteins may be clustered into families on the basis of either sequence or structural similarity

(b) Proteins often comprise separate domains

(c) The number of protein sequences that are available is insufficient to determine that domain shuffling occurs in evolution

(d) Proteins are modular

This question was posed to me in an online quiz.

My question is from Comparative Genomics in division Collecting & Storing Sequences in Laboratory of Bioinformatics

Answer 1

Correct answer is (c) The number of protein sequences that are available is insufficient to determine that domain shuffling occurs in evolution

Easiest explanation: The number of protein sequences is sufficient unlike mentioned in option c. The comparisons of proteomes of different organisms can identify the type of domain changes and also provide an indication as to what biological role they may have in a particular organism.