ABSTRACT
A meiotic fine structure map of a yeast tyrosine-inserting ochre suppressor, SUP3-o, was constructed. This was accomplished by examining ten intragenic suppressor-inactive revertants for their relationship to each other and to the original SUP3-o mutation. The second-site revertants map on both sides of the SUP3-o mutation. The meiotic map length based on the summation of short intervals is 45+/105 asci.