How much DNA do humans share with mice?

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Multiple Choice

How much DNA do humans share with mice?

Explanation:
Genetic similarity between humans and mice is high enough that many genes and cellular functions are shared, reflecting their common mammalian ancestry. When educators give a single rough figure for genome-wide similarity, about 70 percent is a commonly used estimate. This captures the idea that a large portion of the DNA, especially protein-coding genes and essential pathways, is conserved, while notable differences remain in noncoding regions, regulatory elements, and some gene families. So 70 percent is the best-fit general number among the options, acknowledging substantial shared biology without implying complete identity.

Genetic similarity between humans and mice is high enough that many genes and cellular functions are shared, reflecting their common mammalian ancestry. When educators give a single rough figure for genome-wide similarity, about 70 percent is a commonly used estimate. This captures the idea that a large portion of the DNA, especially protein-coding genes and essential pathways, is conserved, while notable differences remain in noncoding regions, regulatory elements, and some gene families. So 70 percent is the best-fit general number among the options, acknowledging substantial shared biology without implying complete identity.

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