The discovery of epigenetic modifications challenges the central idea of molecular biology that it is the sequence of nucleotides in DNA that determines heredity.

Question

Quizplus · Accepted Answer

Epigenetic modifications, such as DNA methylation and histone modification, can affect gene expression without altering the nucleotide sequence, indicating that factors beyond the DNA sequence itself can influence heredity.

The Discovery of Epigenetic Modifications Challenges the Central Idea of Molecular