Which of the following conclusions is supported by the research of both Peter Boysen-Jensen (1913) and Charles and Francis Darwin (late-1800s) on shoot responses to light?
A) When shoots are exposed to light, a chemical substance migrates toward the light.
B) A chemical substance involved in shoot bending is produced in shoot tips.
C) Once shoot tips have been cut, normal growth cannot be induced.
D) Light stimulates the synthesis of a plant hormone that responds to light.

Question

Quizplus · Accepted Answer

Both Peter Boysen-Jensen's and Charles and Francis Darwin's research showed that a chemical substance involved in shoot bending is produced in shoot tips, indicating that shoot bending response to light involves a chemical substance produced in the shoot tip.

Which of the Following Conclusions Is Supported by the Research