Question

Which of the following is incorrect about evolution?

(a) The macromolecules can be considered molecular fossils that encode the history of millions of years of evolution

(b) The building blocks of these biological macromolecules, nucleotide bases, and amino acids form linear sequences that determine the primary structure of the molecules

(c) DNA and proteins are products of evolution

(d) The molecular sequences barely undergo changes

This question was posed to me in an online quiz.

My doubt is from Sequence Homology Versus Sequence Similarity and Identity in section Pairwise Sequence Alignment of Bioinformatics

Answer 1

The correct choice is (d) The molecular sequences barely undergo changes

Easiest explanation: During this time period, the molecular sequences undergo random changes, some of which are selected during the process of evolution. As the selected sequences gradually accumulate mutations and diverge over time, traces of evolution may still remain in certain portions of the sequences to allow identification of the common ancestry.