New Mexico NM-ASR Science Grade 8 Practice Questions - New Mexico Assessment Of Science Readiness - Science, Grade 8 Exam

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Two dogs of the same breed have the same genes for ear shape, but one dog's ears stand up while the other's ears flop over due to differences in nutrition during growth. Which statement best explains this?

Environmental factors such as nutrition can affect how genetic traits are expressed The dogs have different genes for ear shape Nutrition changed the dogs' DNA Ear shape is determined only by the environment

Correct Answer:

Environmental factors such as nutrition can affect how genetic traits are expressed

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