Consider again the same cut rose stem, placed horizontally on the ground. If it
ID: 205012 • Letter: C
Question
Consider again the same cut rose stem, placed horizontally on the ground. If it manages to stay alive, what can you say about its making roots and shoots in the appropriate places? O The portion of the stem that was the "shoot" end has different chemicals than the portion that was originally the "root" end O The stem will sense gravity and grow roots from the "downward" portion of the stem. The stem cannot make new leaves because the apical meristem has been cut off. Differential gene expression will allow cells that were part of the stem to give rise to cells that will be root cells.Explanation / Answer
Answer : B and D
The stem will sense gravity and grow roots from the downward portion of the stem : Because, plants sense and respond to gravity. The roots respond positively to gravity so they grow downwards. And, the shoots respond negatively to gravity so, they grow upwards.
Differential gene expression will allow cells that were part of the stem to give rise to cells that will be root cells : The stem cells are undifferentiated mass of cells which can differentiate into any type of cell based on the stimuli. These stem cells are named based on its location namely, vascular meristem, root meristem and shoot meristem.