Which one of the following is resistant to enzyme action
1. Pollen exine
2. Leaf cuticle
3. Cork
4. Wood fibre

Subtopic:  Stamen: Male Gametophyte |
 94%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

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

1.  castor 2.  cotton
3.  coffee 4.  lily
Subtopic:  Seed |
 80%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


Apomictic embryos in citrus arise from
1. Maternal sporophytic tissue in ovule
2. Antipodal cells
3. Diploid egg
4. Synergids

Subtopic:  Apomixis & Polyembryony |
 73%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Wind pollinated flowers are
1. Small, producing large number of dry pollen grains
2. large producing abundant nectar and pollen
3. Small, producing nectar and dry pollen
4. Small, brightly coloured, producing large number of pollen grains

Subtopic:  Pollination & Outbreeding Devices |
 84%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called     
1. Geitonogamy
2. Karyogamy
3. Autogamy
4. Xenogamy

Subtopic:  Pollination & Outbreeding Devices |
 89%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Filiform apparatus is a characteristic feature of:

1.  Suspensor 2.  Egg
3.  Synergid 4.  Zygote
Subtopic:  Stamen: Male Gametophyte |
 93%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


Nucellar polyembryony is reported in which of the following species?
1. Citrus
2. Gossypium
3. Triticum
4. Brassica

Subtopic:  Apomixis & Polyembryony |
 89%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


In which one of the following pollination is autogamous
1. Geitonogamy
2. Xenogamy
3. Chasmogamy
4. Cleistogamy

Subtopic:  Pollination & Outbreeding Devices |
 79%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


Wind pollination is common in:
1. Legumes
2. Lilies
3. Grasses
4. Orchids

Subtopic:  Pollination & Outbreeding Devices |
 86%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Both, autogamy and geitonogamy are prevented in -
1. Papaya
2. Cucumber
3. Castor
4. Maize

Subtopic:  Pollination & Outbreeding Devices |
 82%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.