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Morphology of Flowering Plants

AIPMT 2010 (Prelims)MCQEasy📈 Topic in 75% papers+4−1
Ques. 1AIPMT 2010 (Prelims)

Keel is characteristic of the flowers of

  1. gulmohur
  2. Cassia
  3. Calotropis
  4. bean

Answer

(4) bean

Solution

As per NCERT, pea and bean flowers (family Fabaceae) have vexillary aestivation: five petals — a large posterior standard, two lateral wings and two smallest anterior petals that fuse to form the keel.

∵ Gulmohur and Cassia have imbricate aestivation (no keel) and Calotropis has valvate aestivation,

∴ keel is characteristic of bean flowers.

Answer: (4)

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Ques. 2AIPMT 2010 (Prelims)

Ovary is half-inferior in the flowers of

  1. guava
  2. plum
  3. brinjal
  4. cucumber
Ques. 3AIPMT 2010 (Prelims)

The technical term used for the androecium in a flower of China rose ( Hibiscus rosa-sinensis) is

  1. monadelphous
  2. diadelphous
  3. polyandrous
  4. polyadelphous
Ques. 4AIPMT 2010 (Prelims)

The scutellum observed in a grain of wheat or maize is comparable to which part of the seed in other monocotyledons?

  1. Cotyledon
  2. Endosperm
  3. Aleurone layer
  4. Plumule
Ques. 5AIPMT 2009

A fruit developed from hypanthodium inflorescence is called

  1. sorosis
  2. syconus
  3. caryopsis
  4. hesperidium
Ques. 6AIPMT 2009

An example of axile placentation is

  1. Dianthus
  2. lemon
  3. marigold
  4. Argemone
Ques. 7AIPMT 2009

Cotyledons and testa respectively are edible parts in

  1. walnut and tamarind
  2. french bean and coconut
  3. cashew nut and litchi
  4. groundnut and pomegranate
Ques. 8AIPMT 2009

An example of a seed with endosperm, perisperm, and caruncle is

  1. coffee
  2. lily
  3. castor
  4. cotton
Ques. 9AIPMT 2009

The floral formula [figure] is that of

  1. soybean
  2. sunhemp
  3. tobacco
  4. tulip
Ques. 10AIPMT 2009

Vegetative propagation in mint occurs by

  1. offset
  2. rhizome
  3. sucker
  4. runner.
Ques. 11AIPMT 2008

The fleshy receptacle of syconus of fig encloses a number of

  1. berries
  2. mericarps
  3. achenes
  4. samaras

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