| 释义 |
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In Drosophila guttifera, the morphogen ACTS in proximity to existing physical landmarks such as the intersections of veins and cross veins on the wing. 对Drosophila guttifera来说，形态生成是在已有的物理路标附近作用的，如在翅膀的静脉血管与横向静脉的交点处。 - 2
“You hold the wing up against the light, so you can see the veins,” said study co-author Daniel Janzen, an evolutionary ecologist at the University of Pennsylvania. “如果你把昆虫的翅膀举起来对着光线，那么你就能很清晰地看到里面的脉络，”学术合著人，宾夕法尼亚大学的生物进化学家Daniel Janzen如是说。 - 3
“You hold the wing up against the light, so you can see the veins, ” said study co-author Daniel Janzen, an evolutionary ecologist at the University of Pennsylvania. “如果你把昆虫的翅膀举起来对着光线，那么你就能很清晰地看到里面的脉络，”学术合著人，宾夕法尼亚大学的生物进化学家Daniel Janzen如是说。
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