Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Y-chromosome effects on position-effect variegation (PEV). YI suppresses PEV more and thus allows more expression of w[m4h] than YF in all three genetic backgrounds (I, Indian; F, French; and B4361). Eye pigmentation was measured as absorption of light at 480 nm. Pictures of heads of representative male flies are shown to the right.
