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Morphology of Flowering Plants · Question 91

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

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)

AIPMT 2010 (Prelims)

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2

Ovary is half-inferior in the flowers of

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

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
AIPMT 2010 (Prelims)
4

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
AIPMT 2010 (Prelims)
5

A fruit developed from hypanthodium inflorescence is called

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

An example of axile placentation is

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

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
AIPMT 2009
8

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

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

The floral formula [figure] is that of

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

Vegetative propagation in mint occurs by

  1. offset
  2. rhizome
  3. sucker
  4. runner.
AIPMT 2009
11

The fleshy receptacle of syconus of fig encloses a number of

  1. berries
  2. mericarps
  3. achenes
  4. samaras
AIPMT 2008

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