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All India-2019 BVM-3
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Q6 of 42 Page 1

State the importance of emasculation and bagging in carrying out artificial hybridization.


• Emasculation: This step is required so as to prevent self pollination and to ensure cross pollination in case of bisexual flowers.


• Bagging: The process of bagging prevents contamination of stigma from not required or undesired pollen.


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25

Explain the changes that occur in the ovary and uterus during menstrual cycle in human females. Mention the influence of pituitary and ovarian hormones in bringing these changes.

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Compare the characteristic features of insect pollinated and wind pollinated flowers. Explain how the respective features assist in pollination.


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Why are papaya plants said to be dioecious?

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Mention the causes of chromosomal disorders in humans. How do these disorders occur?

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Questions · 42
All India-2019 BVM-3
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