The roots of most plants have root hairs near their tips. Researchers grew two types of plants, A and B, in soil with different concentrations of
phosphate ions. They measured the mean number of root hairs in a small area of the
roots, and also the mean length of the root hairs.

Chimeras are interesting organisms that have two different sets of dna. chimeras occur when when two different zygotes fuse to form one organism. some chimeras have no outward symptoms,while some have two different eye colors it two different blood types what roles do mitosis and meiosis play in the process