Question

The clinic's molecular genetics laboratory analyzes how genetic information flows from DNA to functional proteins. You'll examine how gene expression creates proteins and how mutations affect protein structure and function.
Question 4 (11.111111111 points)

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The laboratory analyzes how environmental factors can influence gene expression without changing DNA sequence. This epigenetic regulation affects which genes are transcribed. What does this reveal about the relationship between genes and traits?
Question 4 options:

Gene expression can be modified by environmental factors, affecting how genetic information is used

Only DNA sequence changes can affect gene expression; environmental factors are irrelevant

Environmental factors never influence gene expression because genetic information is completely fixed

Epigenetic changes always permanently alter DNA sequences in ways that damage genetic information

Answer 1

Gene expression can be modified by environmental factors, affecting how genetic information is used.

Explanation: Epigenetic mechanisms (DNA methylation, histone modification, chromatin remodeling) change which genes are transcribed without altering DNA sequence, so traits result from both genetic information and environmental regulation of gene expression.