Gynoecium
Trending Questions
Q. The given figure a and b show female reproductive organs of Papaver and Michelia respectively. Choose the correct option.
- a - multicarpellary syncarpous pistil and b - multicarpellary apocarpous pistil
- a - multicarpellary apocarpous pistil and b - multicarpellary syncarpous pistil
- Both a and b are multicarpellary syncarpous pistils
- Both a and b are multicarpellary apocarpous pistils
Q. The part of gynoecium that plays major role in determining the compatible nature of pollen is
- synergid
- style
- stigma
- ovary
Q. Which of the following plants has more number of locules inside the ovary?
- Allium
- Solanum nigrum
- Mustard
- Pea plant
Q.
The female part of a flower is called_______.
Q.
Will superior or inferior ovary effect the type of fruits formed??
If yes how will it effect ??
Q. Self-incompatibility is a device for:
I. Ensuring cross-pollination
II. Preventing self-pollination
III. Ensuring self-fertilisation
IV. Genetic control to prevent self-fertilisation
Choose the option containing correct statements from those given above.
I. Ensuring cross-pollination
II. Preventing self-pollination
III. Ensuring self-fertilisation
IV. Genetic control to prevent self-fertilisation
Choose the option containing correct statements from those given above.
- I, II and III
- I, II, III and IV
- I, III and IV
- I, II and IV
Q. Half inferior ovary is found in:
- Peach
- Guava
- China rose
- Brinjal
Q.
When the carpels are fused, the gynoecium is called _______.
Q. Male and female reproductive structures of the angiosperms are
- Androecium and gynoecium respectively
- Gynoecium and androecium respectively
- Carpel and pistil respectively
- Pistil and stamen respectively
Q. Placentation in tomato and lemon is
- parietal
- free central
- marginal
- axile
Q.
The pistil and gynoecium are the same.
- True
- False
Q.
All four megaspores in the ovule are functional. True or false?
False
True
Q.
Style is a part of the ovary.
- True
- False
Q. If a ovary has 50 ovules, the number of non-functional megaspores formed in the ovary is
- 50
- 200
- 150
- 100
Q. Which among the following plants has the maximum number of carpels?
- Onion
- Solanum nigrum
- Pisum sativum
- Trifolium
Q.
The female part of the flower is made up of _____.
Q. Which among the following plants has the maximum number of carpels?
- Pisum sativum
- Onion
- Solanum nigrum
- Trifolium
Q.
Flower is the ___ part of a plant.
Q. The part of gynoecium that determines the compatible nature of pollen is?
- Stigma
- Style
- Ovary
- Synergids
Q. Self-incompatibility is a device for:
I. Ensuring cross-pollination
II. Preventing self-pollination
III. Ensuring self-fertilisation
IV. Genetic control to prevent self-fertilisation
Choose the option containing correct statements from those given above.
I. Ensuring cross-pollination
II. Preventing self-pollination
III. Ensuring self-fertilisation
IV. Genetic control to prevent self-fertilisation
Choose the option containing correct statements from those given above.
- I, II and III
- I, II, III and IV
- I, III and IV
- I, II and IV
Q. Long filamentous threads protruding at the end of a young cob of maize are
- Hairs
- Anthers
- Styles
- Ovaries
Q. Consider the following statements.
(i) In Gynandropsis, Passiflora, etc. thalamus is elongated and shows well developed nodes and internodes.
(ii) The floral buds in Agave, Allium, etc. may sometimes get modified into vegetative buds or bulbils.
(iii) Sepals are concerned with protection of flowers in bud condition and petals help to attract insects for pollination.
(iv) Stamens and carpels serve as the male and female reproductive organs respectively.
(i) In Gynandropsis, Passiflora, etc. thalamus is elongated and shows well developed nodes and internodes.
(ii) The floral buds in Agave, Allium, etc. may sometimes get modified into vegetative buds or bulbils.
(iii) Sepals are concerned with protection of flowers in bud condition and petals help to attract insects for pollination.
(iv) Stamens and carpels serve as the male and female reproductive organs respectively.
Which of the following combinations of above statements provides an evidence that flower is a modified shoot?
- (i) and (ii)
- (ii) and (iii)
- (iii) and (iv)
- (i) and (iv)
Q. Number of ovaries in typical flower?
Q. Transfer of pollen grains from one flower to another flower of the same plant is known as
- geitonogamy
- autogamy
- xenogamy
- cleistogamy
Q. Feathery stigma is called ____________.
- Spur
- Stylopodium
- Plumose
- Calyculus
Q. The dehiscence of anther mainly takes place to
- Release seeds
- Release female gamete
- Release pollen
- Both A and B
Q. The hilum and micropyle lie side by side very close each other in
- Anatropous ovule
- Campylotropous ovule
- Circinotropous ovule
- Amphitropous ovule
Q. In an unilocular ovary with a single ovule, the placentation is
- marginal
- basal
- free central
- axile
Q. What is stigma made of a flower made up of
Q. If the sequence of the arrangement of wall layers of anther is reversed, then what will be difficulties in the functioning of anther?
