1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms.
A
Perianth and two integuments
B
Embryo development and apical meristem
C
Absence of resin duct and leaf venation
D
Presence of vessel elements and absence of archegonia
2
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
In which one of the following male and female gametophytes do not have free living independent existance?
A
Polytrichum
B
Cedrus
C
Pteris
D
Funaria
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Which one of the following is heterosporous?
A
Adiantum
B
Equisetum
C
Dryopteris
D
Salvinia
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
In gymnosperms, the pollen chamber represents
A
a cavity in the ovule in which pollen grains are stored after pollination
B
an opening in the megagametophyte through which the pollen tube approaches the egg
C
the microsporangium in which pollen grains develop
D
a cell in the pollen grain in which the sperms are formed.
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