Which statement is true? (1 point)

Question

• Epigenetic changes cannot be explained by DNA sequence, but genetic changes can.
• Epigenetic changes can be explained by DNA sequence, but genetic changes cannot.
• Genetic and epigenetic changes cannot be explained by DNA sequence.
• Genetic and epigenetic changes can be explained by DNA sequence.

Answer 1

The true statement is: Epigenetic changes cannot be explained by DNA sequence, but genetic changes can.

Genetic changes refer to alterations in the DNA sequence itself, such as mutations, which can be directly tied to changes in the genetic code. In contrast, epigenetic changes involve modifications that affect gene expression without altering the underlying DNA sequence, such as DNA methylation and histone modifications.