A Plant That Has the Mutant Form of the WEREWOLF

A plant that has the mutant form of the WEREWOLF gene (wer) would be identifiable by

A) the excessive number of vascular bundles in stem.
B) the lack of fibers in the outer portions of the stem.
C) the abundance of microscopic hairs on the root.
D) the extra thick layer of mesophyll cells in the leaf.
E) the lack of microscopic hairs along the epidermis of the root.