A cat's left eye was covered during the critical period of development after eye opening. At the age of 6 months, a radioactive tracer molecule was injected into the right eye and allowed to reach the primary visual cortex. The cortex was then sectioned and subjected to autoradiography to reveal the ocular dominance columns. Which stripes would you expect to be wider: the dark stripes due to radioactivity (D) or light stripes (L)? Write down D or L as your answer.

Question

Quizplus · Accepted Answer

If the left eye is deprived of visual experience during the critical period of development, its stripes (light) shrink and those of the active right eye (dark) expand.

A Cat's Left Eye Was Covered During the Critical Period