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.
ppan mutants show decreased DNA replication. ppan heterozygotes (A and C) and homozygotes (B and D) were fed the nucleotide analogue BrdU (100 μg/ml) during the periods 0–24 h (A and B) and 24–48 h (C and D). Internal organs were dissected and histochemically stained to detect incorporated BrdU (black). MG, midgut; Pv, proventriculus; MbNb, mushroom body neuroblasts.
