1
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is
A
hemitropous
B
campylotropous
C
anatropous
D
orthotropous.
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
In a flowering plant, archesporium gives rise to
A
only the wall of the spoeangium
B
both wall and the sporogenous cells
C
wall and the tapetum
D
only tapetum and sporogenous cells.
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
In angiosperms pollen tube liberate their male gametes into the
A
central cell
B
antipodal cells
C
egg cell
D
synergids.
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
In angiosperm all the four microspores of tetrad are covered by a layer which is formed by
A
pectocellulose
B
callose
C
cellulose
D
sporopollenin.
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