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.
Frequencies per parental male of second chromosome and sex chromosome nondisjunction. Second chromosome nondisjunction per male is calculated as (2 × progeny)/male for the crosses to C(2)EN females, and sex chromosome nondisjunction per male is calculated as (exceptional progeny)/male for the free-2 crosses (see text).
