Which of these genes is not a part of the lac operon?

a.) operator gene
b.) promoter gene
c.) repressor gene

Rachel carson 1962 silent spring was a groundbreaking work regarding what topic

What did palestinian leader mahmoud abbas promise after succeeding yasir arafat in 2004?

This photo shows an early mesoamerican structure, specifically from the zapotec culture. what was this structure most likely used for? a. creating terraces for farm fieldsb. practicing religious ceremoniesc. playing a ball game with stone hoopsd. protecting a city from invading armies