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Morphology of Flowering Plants · Question 66

NEET 2013 (Karnataka)MCQEasy📈 Topic in 12% papers+4−1
1

In a cymose inflorescence the main axis

  1. has unlimited growth
  2. bears a solitary flower
  3. has unlimited growth but lateral branches end in flowers
  4. terminates in a flower.

Answer

(4) terminates in a flower.

Solution

As per NCERT, in cymose type of inflorescence the main axis terminates in a flower, hence it is limited in growth; the flowers are borne in a basipetal order.

∵ Unlimited growth of the main axis with flowers borne laterally in acropetal succession is a feature of racemose inflorescence, options (1) and (3) are wrong.

Answer: (4)

NEET 2013 (Karnataka)

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2

How many plants among China rose, Ocimum, sunflower, mustard, Alstonia, guava, Calotropis and Nerium (oleander) have opposite phyllotaxy?

  1. Three
  2. Four
  3. Five
  4. Two
NEET 2013 (Karnataka)
3

Which one of the following organisms is correctly matched with its three characteristics?

  1. Pea : C3 pathway, endospermic seed, vexillary aestivation
  2. Tomato : twisted aestivation, axile placentation, berry
  3. Onion : bulb, imbricate aestivation, axile placentation
  4. Maize : C3 pathway, closed vascular bundles, scutellum
AIPMT 2012 (Mains)
4

How many plants in the list given below have marginal placentation? Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, Chilli, Colchicum, Onion, Moong, Pea, Tobacco, Lupin

  1. Four
  2. Five
  3. Six
  4. Three
AIPMT 2012 (Mains)
5

Placentation in tomato and lemon is

  1. parietal
  2. free central
  3. marginal
  4. axile
AIPMT 2012 (Prelims)
6

Cymose inflorescence is present in

  1. Solanum
  2. Sesbania
  3. Trifolium
  4. Brassica
AIPMT 2012 (Prelims)
7

Phyllode is present in

  1. Asparagus
  2. Euphorbia
  3. Australian Acacia
  4. Opuntia
AIPMT 2012 (Prelims)
8

The gynoecium consists of many free pistils in flowers of

  1. Aloe
  2. tomato
  3. Papaver
  4. Michelia
AIPMT 2012 (Prelims)
9

How many plants in the list given below have composite fruits that develop from an inflorescence? Walnut, poppy, radish, fig, pineapple, apple, tomato, mulberry.

  1. Four
  2. Five
  3. Two
  4. Three
AIPMT 2012 (Prelims)
10

The coconut water and the edible part of coconut are equivalent to

  1. endosperm
  2. endocarp
  3. mesocarp
  4. embryo
AIPMT 2012 (Prelims)
11

Vexillary aestivation is characteristic of the family

  1. Fabaceae
  2. Asteraceae
  3. Solanaceae
  4. Brassicaceae
AIPMT 2012 (Prelims)

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