Which of the following statements are correct?
A) Changes in gene expression based on environmental conditions are not considered normal while developmental changes are
B) Environmental epigenetic changes can vary due to the exposure of the organism to different environmental conditions, while those programmed during development are the result of stimuli generated by the organism itself
C) Environmental epigenetic gene regulation only occurs in reptiles and insects, while developmental epigenetic regulation occurs in all animals
D) Environmental epigenetic gene regulation is typically reversible while developmental epigenetic gene regulation is typically not reversible.

Question

Quizplus · Accepted Answer

Option A is incorrect as changes in gene expression based on environmental conditions can be considered normal and can be essential for an organism's survival. Option C is incorrect as environmental epigenetic gene regulation occurs in all animals, not just reptiles and insects. Option D is partially correct as some environmental epigenetic gene regulation can be reversible, while some developmental epigenetic gene regulation can be reversible. Therefore, option B is the best choice as it correctly states that environmental epigenetic changes can vary based on external stimuli, while developmental changes are programmed within the organism itself.

Which of the Following Statements Are Correct