The gynoecium consists of many free pistils in flowers of:

1. Aloe

2. Tomato

3. Papaver

4. Michelia

Subtopic:  Pistil: Female Gametophyte |
 71%
From NCERT
AIPMT - 2012
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From the statements given below choose the option that are not true for a typical female gametophyte of a flowering plant:

(i) It is 8-nucleate and 7-celled at maturity

(ii) It is cellular during the development

(iii) It is situated inside the nucellus

(iv) It has an egg apparatus situated at the chalazal end

1. i and iv

2. ii and iii

3. i and ii

4. ii and iv

Subtopic:  Pistil: Female Gametophyte |
 73%
From NCERT
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The mature seeds of plants such as gram and peas, posses no endosperm, because

1. These plants are not angiosperms

2. There is no double fertilization in them

3. Endosperm is not formed in them

4. Endosperm gets used up by the developing embryo during seed development

Subtopic:  Endosperm |
 93%
From NCERT
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Match the following and choose correct option
          Group A                        Group B
A. Aleurone layer               i. without fertilization

B. Parthenocarpic fruit       ii. Nutrition fruit

C. Ovule                           iii. Double fertilization

D. Endosperm                   iv. Seed

1. A-i, B-ii, C-iii, D-iv

2. A-ii, B-i, C-iv, D-iii

3. A-iv, B-ii, C-i, D-iii

4. A-ii, B-iv, C-i, D-iii

Subtopic:  Endosperm | Seed |
 92%
From NCERT
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Following are four statements find out correct statements

(i) Microsporangia has four layers, outer three are protective and inner one is nutritive

(ii) Each cell of sporogenous tissue within micorsporangia is capable of giving raise to a microspore tetrad.

(iii) Dehydration of anther is important for seperation of pollen grains in a tetrad.

(iv) Generative cell in pollen grain is small with respect to vegetative cell and it floats in cytoplasm of vegetative cell.

Options

1. All are correct

2. Only (i), (ii) and (iii) is correct

3. Except (ii) all are correct

4. Expect (iii) all are correct.

Subtopic:  Stamen: Microsporangium | Stamen: Male Gametophyte |
 73%
From NCERT
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In a cereal grain, the single cotyledon of the embryo is represented by:

1. coleorhiza

2. scutellum

3. prophyll

4. coleoptiles

Subtopic:  Embryo |
 88%
From NCERT
AIPMT - 2006
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In some plants, the female gamete develops into an embryo without fertilization. This phenomenon is known as:

1. Parthenogenesis 2. Autogamy
3. Parthenocarpy 4. Syngamy

Subtopic:  Fruit |
 63%
NEET - 2019
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What is the fate of the male gametes discharged in the synergid?

1. One fuses with the egg and the other fuses with central cell nuclei
2. One fuses with the egg and the other(s) degenerate(s) in the synergid
3. All fuse with the egg
4. One fuses with the egg and the other(s) fuse(s) with a synergid nucleus

Subtopic:  Double Fertilization |
 87%
From NCERT
NEET - 2019
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Which one of the following statements regarding post-fertilization development in flowering plants is incorrect?

1. Ovules develop into an embryo sac
2. Ovary develops into fruit
3. Zygote develops into an embryo
4. Central cell develops into endosperm
Subtopic:  Pistil: Female Gametophyte |
 79%
From NCERT
NEET - 2019
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The pollen grain represents

1. Male gamete

2. Male gametophyte

3. Microsporophyll

4. Microsporangium

Subtopic:  Stamen: Male Gametophyte |
 81%
From NCERT
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