Question

What phenotype would you expect for a root in which the root cap became well coupled to the xylem? This phenotype would mimic a loss of function mutation in the synthesis of what hormone?

a)elongated roots; abscisic acid

b)shortened roots; ethylene

c)elongated roots; ethylene

d)shortened roots; abscisic acid

Answer 1

When Hoot cap is well coupled to the xylem it means the level of water is high and level o ABA are love low level of ABA exert strong positive effect on Shoot growth while 400t growth is suppressed So under this shortened hoot and elongated shoot is there while this mutation mimic the effect of ABA Option d is currect, Shostened soot, abscisic acid