What is the menstrual cycle and how long does it last?

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

Imagine you are introducing the lac operan and the trp operon to students who have never learned about it before. complete the table to compare the similarities and differences between the two operons

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated