1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
In barley stem vascular bundles are -
A
Closed and scattered
B
Closed and radial
C
Open and in a ring
D
Open and scattered
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is -
A
Maturing
B
Widening
C
Elongating
D
Differentiating
3
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
4
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
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Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12