$A$ : Sieve tubes and companion cells are related ontogenetically.
$R$ : Both develop from same mother cell.
$A$ : Sieve tubes and companion cells are related ontogenetically.
$R$ : Both develop from same mother cell.
- A
Assertion and Reason both are correct and also correct explanation.
- B
Assertion and Reason both are correct but not explanation of assertion.
- C
Assertion is correct, but Reason is incorrect.
- D
Both Assertion and Reason are incorrect.
Similar Questions
The first formed primary phloem referred as...$A$... The later formed primary pholem is referred as ...$B$...
Choose the correct combinations of $A$ and $B$
The first formed primary phloem referred as...$A$... The later formed primary pholem is referred as ...$B$...
Choose the correct combinations of $A$ and $B$
Sieve tubes have
Sieve tubes have
Xylem tissue is composed of
Xylem tissue is composed of
The companion cells are specialized ........ which are closely associated with sieve tube elements.
The companion cells are specialized ........ which are closely associated with sieve tube elements.
What is incorrect for vessel ?
What is incorrect for vessel ?