The pollen grains of __________ cause pollen allergy.

orchids

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Parthenium

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Bryophyllum

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None of these

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Solution

The correct option is B Parthenium
Pollen grains of certain species can cause allergies and bronchial afflictions in some people leading to chronic respiratory disorders– asthma, bronchitis etc.
Parthenium or carrot grass came into India as a contaminant along with imported wheat.
It causes pollen allergy.

The pollen grains of orchids and Bryophyllum does not trigger allergic reactions.

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Pollen grains cause allergy to many people. The allergy-causing substance(allergen) of the pollen grain is present in______

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