Refer to the figure.
In a wild-type Drosophila, some axons (stained brown) cross over the midline and some project longitudinally on either side of it, forming a ladder-like pattern of axons. In the image on the right, all axons are bundled at the midline. What mutation could have caused the abnormal axonal projection pattern in the right-hand image?

Question

Refer to the figure.
  In a wild-type Drosophila, some axons (stained brown) cross over the midline and some project longitudinally on either side of it, forming a ladder-like pattern of axons. In the image on the right, all axons are bundled at the midline. What mutation could have caused the abnormal axonal projection pattern in the right-hand image?

Quizplus · Accepted Answer

The Answer of Refer to the figure.
  In a wild-type Drosophila, some axons (stained brown) cross over the midline and some project longitudinally on either side of it, forming a ladder-like pattern of axons. In the image on the right, all axons are bundled at the midline. What mutation could have caused the abnormal axonal projection pattern in the right-hand image?

Refer to the Figure