1
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
2
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Change Language
The difference between spermiogenesis and spermiation is
A
in spermiogenesis spermatids are formed, while in spermiation spermatozoa are formed
B
in spermiogenesis spermatozoa are formed, while in spermiation spermatids are formed
C
in spermiogenesis spermatozoa from Sertoli cells are released into the cavity of seminiferous tubules, while in spermiation spermatozoa are formed
D
in spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules
3
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Change Language
Winged pollen grains are present in
A
Mustard
B
Cycas
C
Mango
D
Pinus
4
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
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