Multiple Choice
The auxin-based model of phyllotaxy states that auxin:
A) in young primordia lower the auxin concentration in neighboring cells.
B) in older primordia stimulate internode elongation.
C) causes the tunica to buckle.
D) in young primordia raises the auxin concentration in neighboring cells.
E) in the apical meristem stimulates cells to divide.
Correct Answer:

Verified
Correct Answer:
Verified
Q54: A stolon is a modified, aboveground root.
Q55: In the angiosperm shoot apex, the corpus
Q56: By definition, a plant having leaflets has
Q57: A prickle is a modification of:<br>A)a branch.<br>B)a
Q58: In the transition region, there is a
Q60: MADS box genes are a class of
Q61: Which of the following is NOT part
Q62: When you eat celery and rhubarb you
Q63: A leaf having a rachis is a
Q64: Most tendrils are modified:<br>A)roots.<br>B)stems.<br>C)leaves.<br>D)flowers.<br>E)buds.