1
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Change Language
Double fertilization is
A
fusion of two male gametes of a pollen tube with two different eggs
B
fusion of one male gamete with two polar nuclei
C
fusion of two male gametes with one egg
D
syngamy and triple fusion
2
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Change Language
Winged pollen grains are present in
A
Mustard
B
Cycas
C
Mango
D
Pinus
3
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following has proved helpful in preserving pollen as fossils?
A
Pollenkitt
B
Cellulosic intine
C
Oil content
D
Sporopollenin
4
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
A dioecious flowering plant prevents both
A
autogamy and geitonogamy
B
geitonogamy and xenogamy
C
cleistogamy and xenogamy
D
autogamy and xenogamy.
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