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1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by :
A
Absence of secondary phloem
B
Presence of cortex
C
Position of protoxylem
D
Absence of secondary xylem
2
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Vascular tissues in flowering plants develop from:
A
plerome
B
periblem
C
phellogen
D
dermatogen
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
The length of different internodes in a culm of sugarcane is variable because of:
A
shoot apical meristem
B
position of axillary buds
C
size of leaf lamina at the node below each internode
D
intercalary meristem
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Passage cells are thin-walled cells found in:-
A
Endodermis of roots facilitating rapid transport of water from cortex to pericycle
B
Testa of seeds to enable emergence of growing embryonic axis during seed germination.
C
Phloem elements that serve as entry points for substances for transport to other plant parts
D
Central region of style through which the pollen tube grows towards the ovary.
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