GMAT Sentence Correction (SC) | Re: Burrow Design - A new 700 level SC problem

Hi everyone,

First of all, thank you all very much for your responses. It's really good to see such nice and analytical responses. This definitely helps to learn in a much more effective manner. SO here comes the official explanation for this one.

A new study suggests that different species of mice have different burrow design:a lab-raised mouse too can build species-specific burrow due to its genes, carrying various DNA combinations of burrow creation in genome.