DNA配列に依存しない遺伝形質の伝達

Mice that inherit two normal copies of the gene should not exhibit this coloring. But oddly enough, the team found that a large percentage of the resulting mice in their study that inherited only normal copies of the gene from their heterozygous parents did in fact have the white spots.

Searching for an explanation, the scientists found that the mutant mice bore unusually low levels of regular RNA interspersed with unusually large versions of the messenger molecule. Further, they noticed that this RNA found its way into mouse sperm. And when they injected the RNA into developing embryos it produced the telltale patches in nearly 50 percent of the offspring, who in turn passed the trait along to their offspring.

ワイルドタイプの遺伝型なのに変異形質を示すマウス。その表現型は配偶子（精子か卵子）に含まれるRNAの量で決定されているらしいですが、そうすると｢遺伝物質はDNA｣という既知の法則が根源から崩れてしまいます。こりゃまた教科書の書き換えか？