Sperm cells of angiosperms differ from the rest of the plant groups like gymnosperms by
Sperm cells of angiosperms differ from the rest of the plant groups like gymnosperms by
- A
In angiosperms the sperm cells are non-motile whereas in the others they are flagellate
- B
In angiosperms the sperm cells are produced in the pollen grain whereas in the rest they are produced in the antheridium
- C
In angiosperms and gymnosperms the sperm cells are non-motile whereas in the rest they are flagellated
- D
None of the above
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Which of the following plant provides safe place to insect for laying eggs?
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Chasmogamy refers to the condition where
Chasmogamy refers to the condition where
- [AIIMS 2012]
$A$ : Geitonogamy helps in maintaining homozygosity and superiority of the race indefinitely.
$R$ : It is functionally, ecologically and genetically cross pollination.
$A$ : Geitonogamy helps in maintaining homozygosity and superiority of the race indefinitely.
$R$ : It is functionally, ecologically and genetically cross pollination.
Animal vectors are required for pollination in
Animal vectors are required for pollination in
- [NEET 2013]
Which type of pollen grains are required for wind pollination ?
Which type of pollen grains are required for wind pollination ?