|
Statement 1: |
The quiescent centre acts as a reservoir of relatively resistant cells, which constitute a permanent source of active initials. |
|
Statement 2: |
The cells of the inactive region of quiescent centre become active when the previous active initials get damaged. |
|
a) |
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1 |
|
b) |
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1 |
|
c) |
Statement 1 is True, Statement 2 is False |
|
d) |
Statement 1 is False, Statement 2 is True |
|
Statement 1: |
The quiescent centre acts as a reservoir of relatively resistant cells, which constitute a permanent source of active initials. |
|
Statement 2: |
The cells of the inactive region of quiescent centre become active when the previous active initials get damaged. |
|
a) |
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1 |
|
b) |
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1 |
|
c) |
Statement 1 is True, Statement 2 is False |
|
d) |
Statement 1 is False, Statement 2 is True |
|
(b) Quiescent centre was discovered by Clowes in roots. It is present between the root cap and active meristematic region. The cells of this region have lower concentrations of DNA, RNA and protein. This is inactive region, which acts as a reservoir of relatively resistant cells. It constitutes a permanent source of active initials. |