Plant Growth And Development Question 180
Question: Grass coleoptile tip bend towards source of light because
Options:
A) It likes the sun
B) It is heavy
C) It needs darkness
D) Due to some secretion from tip
Show Answer
Answer:
Correct Answer: D
Solution:
Darwin and his son found that bending movement of coleoptile of Canary grass was due to exposure of tip of unilateral light.
Boysen-Jensen found that the tip produces a chemical which was later named auxin.
BETA
