A They resulted from a trait of the mustard plant being selected and bred to other plants
b
They resulted from the exposure to extreme temperatures and ultraviolet sun rays.
c
They were created over one generation with only two plants
d
They stopped forming additional varieties at the end of a growth cycle.

A

Explanation:

If all came from traits of the mustard plant, they must be some portion mustard plant.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.