1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Which one of the following is heterosporous?
A
Adiantum
B
Equisetum
C
Dryopteris
D
Salvinia
2
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.
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Spore dissemination in some liverworts is added by
A
indusium
B
calyptra
C
peristome teeth
D
elaters.
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
In the prothallus of a vascular cryptogam, the antherozoids and eggs mature at different times. As a result
A
there is high degree of sterility
B
one can conclude that the plants is apomictic
C
self fertilization is prevented
D
there is no change in success rate of fertilization.
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