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Question
Which of the following in spite of being dicot lacks cotyledons?
Which of the following in spite of being dicot lacks cotyledons?
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Solution
The correct option is A Cuscuta
Dicot plants are characterised by presence of two cotyledons.
The genus Cuscuta (dodder) comprises about 200 holoparasitic species occurring on all continents. Their seedlings have no roots and cotyledons but are only string-like hypocotyls. When they contact suitable host plants, haustoria are formed and thereafter seedlings rapidly develop into vigorously growing branches without roots and leaves.
Pistia is a monocot plant. Dianthus and Ranunculus are dicots having two cotyledons.
Dicot plants are characterised by presence of two cotyledons.
The genus Cuscuta (dodder) comprises about 200 holoparasitic species occurring on all continents. Their seedlings have no roots and cotyledons but are only string-like hypocotyls. When they contact suitable host plants, haustoria are formed and thereafter seedlings rapidly develop into vigorously growing branches without roots and leaves.
Pistia is a monocot plant. Dianthus and Ranunculus are dicots having two cotyledons.
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