What is the term given to a group of cells that develop from a single original cell?

25% or 1/4 of the offspring would have red flowers, 50% or 1/2 of the offspring would have pink flowers, and 25% or 1/4 of the offspring would have white flowers. i crossed rr and rr which are the pink-flowered genotypes to find these ratios.

Ibelieve z is the second because it looks like tissues, where has y is first because it's a cell, and the others look like organs or body parts.