To be honest, it took me about 10 minutes to work this out, so explaining it clearly ain't easy. But the point is that you do need to take more time to do it. If you're good at that, you can be a good science writer. This is great information, and working quotes from sources into a query is a great idea because it shows the editor that you've already put a good deal of work into the story. But you need to say this in your own words.
Reserve quotes to drive points home, to add life, to bring emotion into a piece.
Also, quotes should be short and snappy. Researchers are currently examining the degree to which specific reading-related skills such as converting written symbols into sounds are due to caused by genetic influences. In addition, they are studying the way in which specific school interventions such as talking computers might help students with these specific reading problems. This story will be particularly interesting to local readers not only because the researchers are local, but because the twins being studied come from Colorado school districts. If it's too soon to say, it makes your sell job harder.