Directions for question 23: Five sentences are given below, related to a single topic. Four of them, when sequenced properly, form a coherent paragraph. Identify the odd sentence that does not fit into the context of the paragraph.
1. Epigenetic modifications alter gene expression without modifying the underlying DNA sequence.
2. Environmental factors such as stress, nutrition, and toxin exposure can permanently attach chemical tags to chromatin.
3. These molecular adaptations allow organisms to rapidly adjust physiological responses to fluctuating ecological conditions.
4. Neanderthal genomes exhibit striking similarities to modern human DNA despite millions of years of evolutionary divergence.
5. Heritable across generations, epigenetic inheritance proves that evolution is more dynamic than strict genetic determinism implies.
1. Epigenetic modifications alter gene expression without modifying the underlying DNA sequence.
2. Environmental factors such as stress, nutrition, and toxin exposure can permanently attach chemical tags to chromatin.
3. These molecular adaptations allow organisms to rapidly adjust physiological responses to fluctuating ecological conditions.
4. Neanderthal genomes exhibit striking similarities to modern human DNA despite millions of years of evolutionary divergence.
5. Heritable across generations, epigenetic inheritance proves that evolution is more dynamic than strict genetic determinism implies.