There is not any options but the parts of Lac Operon is:
Promoter
Repressor
Operator
Genes
Hope this helps!
Earth's crust is made of rock, and rock is made of natural substances called minerals. There are three main types of rock: sedimentary, igneous, and metamorphic rock. Each type is produced in different ways. The oldest rocks on Earth were formed about 3.8 billion years ago.
