Top 5 Case Based Questions from Biology | Class 10 CBSE | Boards 2024

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[@sreejithps1460]

a: pollen grains when landed on stigma creates a pollen tube through which the germ cell travels to the ovaries
b: cross pollination
Thank you for this splendid session 💜
Homework question

[@by_justice242]

HW:
a. Pollen grain along the style to the ovary. This pollen then through the tube and to form the .
b. occurs in unisexual flowers.
Thank you teacher for the recorded session. Live would have been more engaging but time-consuming so i think this was a better approach.

[@ramphad8080]

Homework questions Answers :-
1.When the pollen grain land on stigma there a chemical communication happens which means that the correct pollen is selected and starts to grow towards the ovary and ovule.
2. Self pollination in unisexual flowers.
Thank you.

[@sakshi1121]

Ans of hw
1. When pollen lands on stigma is germinates on string and produce pollen tube with enters to the ovule.
2. Cross pollination occurs in unisexual flowers.
Thank u ❤

[@himanshi9231]

HW - When pollen grains reaches the stigma then the pollen tube starts to grow from them to reach to ovary. In unisexual flowers only cross pollination is possible because they contain either stamen or pistil. thank you mam

[@sampadatta3669]

a. It make pollen tube
b. Cross pollination

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