Which statement about molecular evolution is true?

Question

Quizplus · Accepted Answer

Molecular evolution refers to the changes that occur at the molecular level (such as changes in DNA sequence) over time. These changes can generate genetic variation, which can lead to the development of new species or the adaptation of existing species to their environment. Therefore, statement D is true. Statements A, B, and E are false, as different genes can evolve at different rates, not all nucleotide substitutions lead to amino acid replacements, and molecular evolution can account for genetic variation. Statement C is also false, as changes in the amino acid sequence can affect both the charge and the secondary structure of a protein.

Which Statement About Molecular Evolution Is True