Compatible Pollination

Compatible Pollination

Assessment

Interactive Video

Biology

9th - 10th Grade

Hard

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The video tutorial explains the process of pollination, distinguishing between self and cross pollination. It highlights the importance of cross pollination for genetic variation and evolution. Various mechanisms, known as outbreeding devices, are discussed to encourage cross pollination and prevent self pollination. These include dichogamy, heterostyly, herkogamy, and self-sterility. The video also covers pollen-pistil interaction and its role in plant breeding, emphasizing artificial hybridization techniques like emasculation and bagging to improve crop varieties.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is self-pollination and how does it differ from cross-pollination?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the significance of genetic variation in flowering plants.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the condition of 'declining' in flowering plants.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the differences between protandrous and protogynous conditions in flowers?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

How does heterostyly promote cross-pollination?

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

What is self-sterility and how does it affect fertilization?

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

Discuss the process of pollen-pistil interaction and its importance in plant breeding.

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