What does the notation rr mean to geneticists?

Which experiment would most likely contain experimental bias

Differentiation of cells changes the nucleic information. true false

Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. single-celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. what is the step in the cell cycle that ensure genetic continuity?